Home / 14,088.32-21,136-4,227.78

Finding the Fourth Proportional to 14,088.32, 21,136 and 4,227.78

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Solution

The fourth proportional to 14,088.32, 21,136 and 4,227.78 is: 6,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.32 : 21,136 = 4,227.78 : x
  2. Step 2: Convert to fraction form
    14,088.32/21,136 = 4,227.78/x
  3. Step 3: Cross multiply
    14,088.32x = 21,136 × 4,227.78
  4. Step 4: Simplify right side
    14,088.32x = 89,358,358.08
  5. Step 5: Solve for x
    x = 89,358,358.08/14,088.32
  6. Step 6: Final answer
    x = 6,342.73

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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.