Home / 10,470.29-15,686.70-5,528.87

Finding the Fourth Proportional to 10,470.29, 15,686.70 and 5,528.87

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Solution

The fourth proportional to 10,470.29, 15,686.70 and 5,528.87 is: 8,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,470.29 : 15,686.70 = 5,528.87 : x
  2. Step 2: Convert to fraction form
    10,470.29/15,686.70 = 5,528.87/x
  3. Step 3: Cross multiply
    10,470.29x = 15,686.70 × 5,528.87
  4. Step 4: Simplify right side
    10,470.29x = 86,729,725.03
  5. Step 5: Solve for x
    x = 86,729,725.03/10,470.29
  6. Step 6: Final answer
    x = 8,283.41

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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.