Home / 10,535.12-15,789.01-4,287.87

Finding the Fourth Proportional to 10,535.12, 15,789.01 and 4,287.87

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Solution

The fourth proportional to 10,535.12, 15,789.01 and 4,287.87 is: 6,426.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.12 : 15,789.01 = 4,287.87 : x
  2. Step 2: Convert to fraction form
    10,535.12/15,789.01 = 4,287.87/x
  3. Step 3: Cross multiply
    10,535.12x = 15,789.01 × 4,287.87
  4. Step 4: Simplify right side
    10,535.12x = 67,701,222.31
  5. Step 5: Solve for x
    x = 67,701,222.31/10,535.12
  6. Step 6: Final answer
    x = 6,426.24

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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.