Home / 12,470.28-18,700.56-4,674.84

Finding the Fourth Proportional to 12,470.28, 18,700.56 and 4,674.84

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Solution

The fourth proportional to 12,470.28, 18,700.56 and 4,674.84 is: 7,010.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.28 : 18,700.56 = 4,674.84 : x
  2. Step 2: Convert to fraction form
    12,470.28/18,700.56 = 4,674.84/x
  3. Step 3: Cross multiply
    12,470.28x = 18,700.56 × 4,674.84
  4. Step 4: Simplify right side
    12,470.28x = 87,422,125.91
  5. Step 5: Solve for x
    x = 87,422,125.91/12,470.28
  6. Step 6: Final answer
    x = 7,010.44

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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.