Home / 17,947.66-24,768.58-9,990.40

Finding the Fourth Proportional to 17,947.66, 24,768.58 and 9,990.40

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Solution

The fourth proportional to 17,947.66, 24,768.58 and 9,990.40 is: 13,787.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,947.66 : 24,768.58 = 9,990.40 : x
  2. Step 2: Convert to fraction form
    17,947.66/24,768.58 = 9,990.40/x
  3. Step 3: Cross multiply
    17,947.66x = 24,768.58 × 9,990.40
  4. Step 4: Simplify right side
    17,947.66x = 247,447,897.79
  5. Step 5: Solve for x
    x = 247,447,897.79/17,947.66
  6. Step 6: Final answer
    x = 13,787.20

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Double scale
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Similar ratio
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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.