Home / 15,440.68-21,307.62-9,472.60

Finding the Fourth Proportional to 15,440.68, 21,307.62 and 9,472.60

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Solution

The fourth proportional to 15,440.68, 21,307.62 and 9,472.60 is: 13,071.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,440.68 : 21,307.62 = 9,472.60 : x
  2. Step 2: Convert to fraction form
    15,440.68/21,307.62 = 9,472.60/x
  3. Step 3: Cross multiply
    15,440.68x = 21,307.62 × 9,472.60
  4. Step 4: Simplify right side
    15,440.68x = 201,838,561.21
  5. Step 5: Solve for x
    x = 201,838,561.21/15,440.68
  6. Step 6: Final answer
    x = 13,071.87

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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.