Home / 14,787.45-22,156.10-8,931.75

Finding the Fourth Proportional to 14,787.45, 22,156.10 and 8,931.75

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Solution

The fourth proportional to 14,787.45, 22,156.10 and 8,931.75 is: 13,382.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.45 : 22,156.10 = 8,931.75 : x
  2. Step 2: Convert to fraction form
    14,787.45/22,156.10 = 8,931.75/x
  3. Step 3: Cross multiply
    14,787.45x = 22,156.10 × 8,931.75
  4. Step 4: Simplify right side
    14,787.45x = 197,892,701.52
  5. Step 5: Solve for x
    x = 197,892,701.52/14,787.45
  6. Step 6: Final answer
    x = 13,382.48

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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.