Home / 7,125.74-10,693.47-4,278.62

Finding the Fourth Proportional to 7,125.74, 10,693.47 and 4,278.62

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Solution

The fourth proportional to 7,125.74, 10,693.47 and 4,278.62 is: 6,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.74 : 10,693.47 = 4,278.62 : x
  2. Step 2: Convert to fraction form
    7,125.74/10,693.47 = 4,278.62/x
  3. Step 3: Cross multiply
    7,125.74x = 10,693.47 × 4,278.62
  4. Step 4: Simplify right side
    7,125.74x = 45,753,294.61
  5. Step 5: Solve for x
    x = 45,753,294.61/7,125.74
  6. Step 6: Final answer
    x = 6,420.85

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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.