Home / 10,387.36-15,581.04-3,461.86

Finding the Fourth Proportional to 10,387.36, 15,581.04 and 3,461.86

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Solution

The fourth proportional to 10,387.36, 15,581.04 and 3,461.86 is: 5,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.36 : 15,581.04 = 3,461.86 : x
  2. Step 2: Convert to fraction form
    10,387.36/15,581.04 = 3,461.86/x
  3. Step 3: Cross multiply
    10,387.36x = 15,581.04 × 3,461.86
  4. Step 4: Simplify right side
    10,387.36x = 53,939,379.13
  5. Step 5: Solve for x
    x = 53,939,379.13/10,387.36
  6. Step 6: Final answer
    x = 5,192.79

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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.