Home / 15,613.76-21,554.03-9,956.12

Finding the Fourth Proportional to 15,613.76, 21,554.03 and 9,956.12

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Solution

The fourth proportional to 15,613.76, 21,554.03 and 9,956.12 is: 13,743.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,613.76 : 21,554.03 = 9,956.12 : x
  2. Step 2: Convert to fraction form
    15,613.76/21,554.03 = 9,956.12/x
  3. Step 3: Cross multiply
    15,613.76x = 21,554.03 × 9,956.12
  4. Step 4: Simplify right side
    15,613.76x = 214,594,426.28
  5. Step 5: Solve for x
    x = 214,594,426.28/15,613.76
  6. Step 6: Final answer
    x = 13,743.93

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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.