Home / 15,478.20-21,349.08-9,737.33

Finding the Fourth Proportional to 15,478.20, 21,349.08 and 9,737.33

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Solution

The fourth proportional to 15,478.20, 21,349.08 and 9,737.33 is: 13,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.20 : 21,349.08 = 9,737.33 : x
  2. Step 2: Convert to fraction form
    15,478.20/21,349.08 = 9,737.33/x
  3. Step 3: Cross multiply
    15,478.20x = 21,349.08 × 9,737.33
  4. Step 4: Simplify right side
    15,478.20x = 207,882,930.41
  5. Step 5: Solve for x
    x = 207,882,930.41/15,478.20
  6. Step 6: Final answer
    x = 13,430.69

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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.