Home / 15,430.62-21,294.54-9,061.80

Finding the Fourth Proportional to 15,430.62, 21,294.54 and 9,061.80

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Solution

The fourth proportional to 15,430.62, 21,294.54 and 9,061.80 is: 12,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.62 : 21,294.54 = 9,061.80 : x
  2. Step 2: Convert to fraction form
    15,430.62/21,294.54 = 9,061.80/x
  3. Step 3: Cross multiply
    15,430.62x = 21,294.54 × 9,061.80
  4. Step 4: Simplify right side
    15,430.62x = 192,966,862.57
  5. Step 5: Solve for x
    x = 192,966,862.57/15,430.62
  6. Step 6: Final answer
    x = 12,505.45

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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.