Home / 10,470.79-15,687.45-5,529.37

Finding the Fourth Proportional to 10,470.79, 15,687.45 and 5,529.37

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Solution

The fourth proportional to 10,470.79, 15,687.45 and 5,529.37 is: 8,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.79 : 15,687.45 = 5,529.37 : x
  2. Step 2: Convert to fraction form
    10,470.79/15,687.45 = 5,529.37/x
  3. Step 3: Cross multiply
    10,470.79x = 15,687.45 × 5,529.37
  4. Step 4: Simplify right side
    10,470.79x = 86,741,715.41
  5. Step 5: Solve for x
    x = 86,741,715.41/10,470.79
  6. Step 6: Final answer
    x = 8,284.16

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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.