Home / 14,605.40-21,908.10-9,939.80

Finding the Fourth Proportional to 14,605.40, 21,908.10 and 9,939.80

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Solution

The fourth proportional to 14,605.40, 21,908.10 and 9,939.80 is: 14,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.40 : 21,908.10 = 9,939.80 : x
  2. Step 2: Convert to fraction form
    14,605.40/21,908.10 = 9,939.80/x
  3. Step 3: Cross multiply
    14,605.40x = 21,908.10 × 9,939.80
  4. Step 4: Simplify right side
    14,605.40x = 217,762,132.38
  5. Step 5: Solve for x
    x = 217,762,132.38/14,605.40
  6. Step 6: Final answer
    x = 14,909.70

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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.