Home / 16,678.86-23,013.17-9,963.47

Finding the Fourth Proportional to 16,678.86, 23,013.17 and 9,963.47

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Solution

The fourth proportional to 16,678.86, 23,013.17 and 9,963.47 is: 13,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.86 : 23,013.17 = 9,963.47 : x
  2. Step 2: Convert to fraction form
    16,678.86/23,013.17 = 9,963.47/x
  3. Step 3: Cross multiply
    16,678.86x = 23,013.17 × 9,963.47
  4. Step 4: Simplify right side
    16,678.86x = 229,290,938.74
  5. Step 5: Solve for x
    x = 229,290,938.74/16,678.86
  6. Step 6: Final answer
    x = 13,747.40

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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.