Home / 14,772.16-20,385.28-8,148.16

Finding the Fourth Proportional to 14,772.16, 20,385.28 and 8,148.16

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Solution

The fourth proportional to 14,772.16, 20,385.28 and 8,148.16 is: 11,244.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.16 : 20,385.28 = 8,148.16 : x
  2. Step 2: Convert to fraction form
    14,772.16/20,385.28 = 8,148.16/x
  3. Step 3: Cross multiply
    14,772.16x = 20,385.28 × 8,148.16
  4. Step 4: Simplify right side
    14,772.16x = 166,102,523.08
  5. Step 5: Solve for x
    x = 166,102,523.08/14,772.16
  6. Step 6: Final answer
    x = 11,244.29

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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.