Home / 14,772.16-20,385.60-8,057.76

Finding the Fourth Proportional to 14,772.16, 20,385.60 and 8,057.76

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Solution

The fourth proportional to 14,772.16, 20,385.60 and 8,057.76 is: 11,119.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.16 : 20,385.60 = 8,057.76 : x
  2. Step 2: Convert to fraction form
    14,772.16/20,385.60 = 8,057.76/x
  3. Step 3: Cross multiply
    14,772.16x = 20,385.60 × 8,057.76
  4. Step 4: Simplify right side
    14,772.16x = 164,262,272.26
  5. Step 5: Solve for x
    x = 164,262,272.26/14,772.16
  6. Step 6: Final answer
    x = 11,119.72

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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.