Home / 10,966.80-16,442.10-4,721.70

Finding the Fourth Proportional to 10,966.80, 16,442.10 and 4,721.70

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Solution

The fourth proportional to 10,966.80, 16,442.10 and 4,721.70 is: 7,079.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,966.80 : 16,442.10 = 4,721.70 : x
  2. Step 2: Convert to fraction form
    10,966.80/16,442.10 = 4,721.70/x
  3. Step 3: Cross multiply
    10,966.80x = 16,442.10 × 4,721.70
  4. Step 4: Simplify right side
    10,966.80x = 77,634,663.57
  5. Step 5: Solve for x
    x = 77,634,663.57/10,966.80
  6. Step 6: Final answer
    x = 7,079.06

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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.