Home / 9,306.05-12,842.40-5,057.15

Finding the Fourth Proportional to 9,306.05, 12,842.40 and 5,057.15

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Solution

The fourth proportional to 9,306.05, 12,842.40 and 5,057.15 is: 6,978.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,306.05 : 12,842.40 = 5,057.15 : x
  2. Step 2: Convert to fraction form
    9,306.05/12,842.40 = 5,057.15/x
  3. Step 3: Cross multiply
    9,306.05x = 12,842.40 × 5,057.15
  4. Step 4: Simplify right side
    9,306.05x = 64,945,878.95
  5. Step 5: Solve for x
    x = 64,945,878.95/9,306.05
  6. Step 6: Final answer
    x = 6,978.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.