Home / 8,872.80-13,298.40-3,937.20

Finding the Fourth Proportional to 8,872.80, 13,298.40 and 3,937.20

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Solution

The fourth proportional to 8,872.80, 13,298.40 and 3,937.20 is: 5,901.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.80 : 13,298.40 = 3,937.20 : x
  2. Step 2: Convert to fraction form
    8,872.80/13,298.40 = 3,937.20/x
  3. Step 3: Cross multiply
    8,872.80x = 13,298.40 × 3,937.20
  4. Step 4: Simplify right side
    8,872.80x = 52,358,460.48
  5. Step 5: Solve for x
    x = 52,358,460.48/8,872.80
  6. Step 6: Final answer
    x = 5,901.01

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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.