Home / 15,350.46-21,185.43-8,637.18

Finding the Fourth Proportional to 15,350.46, 21,185.43 and 8,637.18

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Solution

The fourth proportional to 15,350.46, 21,185.43 and 8,637.18 is: 11,920.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,350.46 : 21,185.43 = 8,637.18 : x
  2. Step 2: Convert to fraction form
    15,350.46/21,185.43 = 8,637.18/x
  3. Step 3: Cross multiply
    15,350.46x = 21,185.43 × 8,637.18
  4. Step 4: Simplify right side
    15,350.46x = 182,982,372.29
  5. Step 5: Solve for x
    x = 182,982,372.29/15,350.46
  6. Step 6: Final answer
    x = 11,920.32

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Half scale
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Double scale
Find fourth proportional to 15,351.46, 21,186.81 and 8,638.18
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.