Home / 15,508.26-21,396.15-10,208.43

Finding the Fourth Proportional to 15,508.26, 21,396.15 and 10,208.43

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Solution

The fourth proportional to 15,508.26, 21,396.15 and 10,208.43 is: 14,084.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,508.26 : 21,396.15 = 10,208.43 : x
  2. Step 2: Convert to fraction form
    15,508.26/21,396.15 = 10,208.43/x
  3. Step 3: Cross multiply
    15,508.26x = 21,396.15 × 10,208.43
  4. Step 4: Simplify right side
    15,508.26x = 218,421,099.54
  5. Step 5: Solve for x
    x = 218,421,099.54/15,508.26
  6. Step 6: Final answer
    x = 14,084.18

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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.