Home / 14,105.32-21,154.50-5,787.70

Finding the Fourth Proportional to 14,105.32, 21,154.50 and 5,787.70

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Solution

The fourth proportional to 14,105.32, 21,154.50 and 5,787.70 is: 8,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,105.32 : 21,154.50 = 5,787.70 : x
  2. Step 2: Convert to fraction form
    14,105.32/21,154.50 = 5,787.70/x
  3. Step 3: Cross multiply
    14,105.32x = 21,154.50 × 5,787.70
  4. Step 4: Simplify right side
    14,105.32x = 122,435,899.65
  5. Step 5: Solve for x
    x = 122,435,899.65/14,105.32
  6. Step 6: Final answer
    x = 8,680.12

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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.