Home / 10,290.12-15,442.47-7,370.88

Finding the Fourth Proportional to 10,290.12, 15,442.47 and 7,370.88

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Solution

The fourth proportional to 10,290.12, 15,442.47 and 7,370.88 is: 11,061.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,290.12 : 15,442.47 = 7,370.88 : x
  2. Step 2: Convert to fraction form
    10,290.12/15,442.47 = 7,370.88/x
  3. Step 3: Cross multiply
    10,290.12x = 15,442.47 × 7,370.88
  4. Step 4: Simplify right side
    10,290.12x = 113,824,593.27
  5. Step 5: Solve for x
    x = 113,824,593.27/10,290.12
  6. Step 6: Final answer
    x = 11,061.54

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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.