Home / 14,776.52-20,383.67-9,990.17

Finding the Fourth Proportional to 14,776.52, 20,383.67 and 9,990.17

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Solution

The fourth proportional to 14,776.52, 20,383.67 and 9,990.17 is: 13,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,776.52 : 20,383.67 = 9,990.17 : x
  2. Step 2: Convert to fraction form
    14,776.52/20,383.67 = 9,990.17/x
  3. Step 3: Cross multiply
    14,776.52x = 20,383.67 × 9,990.17
  4. Step 4: Simplify right side
    14,776.52x = 203,636,176.65
  5. Step 5: Solve for x
    x = 203,636,176.65/14,776.52
  6. Step 6: Final answer
    x = 13,781.06

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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.