Home / 15,506.19-21,398.09-8,792.43

Finding the Fourth Proportional to 15,506.19, 21,398.09 and 8,792.43

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Solution

The fourth proportional to 15,506.19, 21,398.09 and 8,792.43 is: 12,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,506.19 : 21,398.09 = 8,792.43 : x
  2. Step 2: Convert to fraction form
    15,506.19/21,398.09 = 8,792.43/x
  3. Step 3: Cross multiply
    15,506.19x = 21,398.09 × 8,792.43
  4. Step 4: Simplify right side
    15,506.19x = 188,141,164.50
  5. Step 5: Solve for x
    x = 188,141,164.50/15,506.19
  6. Step 6: Final answer
    x = 12,133.29

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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.