Home / 10,368.12-15,542.10-5,158.20

Finding the Fourth Proportional to 10,368.12, 15,542.10 and 5,158.20

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Solution

The fourth proportional to 10,368.12, 15,542.10 and 5,158.20 is: 7,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,368.12 : 15,542.10 = 5,158.20 : x
  2. Step 2: Convert to fraction form
    10,368.12/15,542.10 = 5,158.20/x
  3. Step 3: Cross multiply
    10,368.12x = 15,542.10 × 5,158.20
  4. Step 4: Simplify right side
    10,368.12x = 80,169,260.22
  5. Step 5: Solve for x
    x = 80,169,260.22/10,368.12
  6. Step 6: Final answer
    x = 7,732.29

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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.