Home / 12,470.68-18,708.99-4,679.56

Finding the Fourth Proportional to 12,470.68, 18,708.99 and 4,679.56

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Solution

The fourth proportional to 12,470.68, 18,708.99 and 4,679.56 is: 7,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.68 : 18,708.99 = 4,679.56 : x
  2. Step 2: Convert to fraction form
    12,470.68/18,708.99 = 4,679.56/x
  3. Step 3: Cross multiply
    12,470.68x = 18,708.99 × 4,679.56
  4. Step 4: Simplify right side
    12,470.68x = 87,549,841.24
  5. Step 5: Solve for x
    x = 87,549,841.24/12,470.68
  6. Step 6: Final answer
    x = 7,020.45

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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.