Home / 15,217.71-21,013.79-9,562.25

Finding the Fourth Proportional to 15,217.71, 21,013.79 and 9,562.25

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Solution

The fourth proportional to 15,217.71, 21,013.79 and 9,562.25 is: 13,204.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,217.71 : 21,013.79 = 9,562.25 : x
  2. Step 2: Convert to fraction form
    15,217.71/21,013.79 = 9,562.25/x
  3. Step 3: Cross multiply
    15,217.71x = 21,013.79 × 9,562.25
  4. Step 4: Simplify right side
    15,217.71x = 200,939,113.43
  5. Step 5: Solve for x
    x = 200,939,113.43/15,217.71
  6. Step 6: Final answer
    x = 13,204.29

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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.