Home / 10,291.08-15,423.60-8,904.36

Finding the Fourth Proportional to 10,291.08, 15,423.60 and 8,904.36

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Solution

The fourth proportional to 10,291.08, 15,423.60 and 8,904.36 is: 13,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.08 : 15,423.60 = 8,904.36 : x
  2. Step 2: Convert to fraction form
    10,291.08/15,423.60 = 8,904.36/x
  3. Step 3: Cross multiply
    10,291.08x = 15,423.60 × 8,904.36
  4. Step 4: Simplify right side
    10,291.08x = 137,337,286.90
  5. Step 5: Solve for x
    x = 137,337,286.90/10,291.08
  6. Step 6: Final answer
    x = 13,345.27

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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.