Home / 17,678.76-24,397.11-9,721.50

Finding the Fourth Proportional to 17,678.76, 24,397.11 and 9,721.50

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Solution

The fourth proportional to 17,678.76, 24,397.11 and 9,721.50 is: 13,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,678.76 : 24,397.11 = 9,721.50 : x
  2. Step 2: Convert to fraction form
    17,678.76/24,397.11 = 9,721.50/x
  3. Step 3: Cross multiply
    17,678.76x = 24,397.11 × 9,721.50
  4. Step 4: Simplify right side
    17,678.76x = 237,176,504.87
  5. Step 5: Solve for x
    x = 237,176,504.87/17,678.76
  6. Step 6: Final answer
    x = 13,415.90

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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.