Home / 10,542.80-15,828.60-5,352.32

Finding the Fourth Proportional to 10,542.80, 15,828.60 and 5,352.32

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Solution

The fourth proportional to 10,542.80, 15,828.60 and 5,352.32 is: 8,035.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.80 : 15,828.60 = 5,352.32 : x
  2. Step 2: Convert to fraction form
    10,542.80/15,828.60 = 5,352.32/x
  3. Step 3: Cross multiply
    10,542.80x = 15,828.60 × 5,352.32
  4. Step 4: Simplify right side
    10,542.80x = 84,719,732.35
  5. Step 5: Solve for x
    x = 84,719,732.35/10,542.80
  6. Step 6: Final answer
    x = 8,035.79

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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.