Home / 18,663.76-28,001.64-5,516.24

Finding the Fourth Proportional to 18,663.76, 28,001.64 and 5,516.24

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Solution

The fourth proportional to 18,663.76, 28,001.64 and 5,516.24 is: 8,276.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.76 : 28,001.64 = 5,516.24 : x
  2. Step 2: Convert to fraction form
    18,663.76/28,001.64 = 5,516.24/x
  3. Step 3: Cross multiply
    18,663.76x = 28,001.64 × 5,516.24
  4. Step 4: Simplify right side
    18,663.76x = 154,463,766.63
  5. Step 5: Solve for x
    x = 154,463,766.63/18,663.76
  6. Step 6: Final answer
    x = 8,276.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.