Home / 13,937.20-20,891.16-4,574.80

Finding the Fourth Proportional to 13,937.20, 20,891.16 and 4,574.80

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Solution

The fourth proportional to 13,937.20, 20,891.16 and 4,574.80 is: 6,857.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.20 : 20,891.16 = 4,574.80 : x
  2. Step 2: Convert to fraction form
    13,937.20/20,891.16 = 4,574.80/x
  3. Step 3: Cross multiply
    13,937.20x = 20,891.16 × 4,574.80
  4. Step 4: Simplify right side
    13,937.20x = 95,572,878.77
  5. Step 5: Solve for x
    x = 95,572,878.77/13,937.20
  6. Step 6: Final answer
    x = 6,857.39

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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.