Home / 11,248.29-16,872.79-8,620.58

Finding the Fourth Proportional to 11,248.29, 16,872.79 and 8,620.58

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Solution

The fourth proportional to 11,248.29, 16,872.79 and 8,620.58 is: 12,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.29 : 16,872.79 = 8,620.58 : x
  2. Step 2: Convert to fraction form
    11,248.29/16,872.79 = 8,620.58/x
  3. Step 3: Cross multiply
    11,248.29x = 16,872.79 × 8,620.58
  4. Step 4: Simplify right side
    11,248.29x = 145,453,236.02
  5. Step 5: Solve for x
    x = 145,453,236.02/11,248.29
  6. Step 6: Final answer
    x = 12,931.14

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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.