Home / 15,306.48-21,123.96-9,336.52

Finding the Fourth Proportional to 15,306.48, 21,123.96 and 9,336.52

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Solution

The fourth proportional to 15,306.48, 21,123.96 and 9,336.52 is: 12,885.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.48 : 21,123.96 = 9,336.52 : x
  2. Step 2: Convert to fraction form
    15,306.48/21,123.96 = 9,336.52/x
  3. Step 3: Cross multiply
    15,306.48x = 21,123.96 × 9,336.52
  4. Step 4: Simplify right side
    15,306.48x = 197,224,275.02
  5. Step 5: Solve for x
    x = 197,224,275.02/15,306.48
  6. Step 6: Final answer
    x = 12,885.02

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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.