Home / 15,527.92-21,428.91-8,454.73

Finding the Fourth Proportional to 15,527.92, 21,428.91 and 8,454.73

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Solution

The fourth proportional to 15,527.92, 21,428.91 and 8,454.73 is: 11,667.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,527.92 : 21,428.91 = 8,454.73 : x
  2. Step 2: Convert to fraction form
    15,527.92/21,428.91 = 8,454.73/x
  3. Step 3: Cross multiply
    15,527.92x = 21,428.91 × 8,454.73
  4. Step 4: Simplify right side
    15,527.92x = 181,175,648.24
  5. Step 5: Solve for x
    x = 181,175,648.24/15,527.92
  6. Step 6: Final answer
    x = 11,667.73

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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.