Home / 13,723.92-18,947.52-9,248.40

Finding the Fourth Proportional to 13,723.92, 18,947.52 and 9,248.40

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Solution

The fourth proportional to 13,723.92, 18,947.52 and 9,248.40 is: 12,768.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.92 : 18,947.52 = 9,248.40 : x
  2. Step 2: Convert to fraction form
    13,723.92/18,947.52 = 9,248.40/x
  3. Step 3: Cross multiply
    13,723.92x = 18,947.52 × 9,248.40
  4. Step 4: Simplify right side
    13,723.92x = 175,234,243.97
  5. Step 5: Solve for x
    x = 175,234,243.97/13,723.92
  6. Step 6: Final answer
    x = 12,768.53

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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.