Home / 10,479.60-15,720.30-3,457.52

Finding the Fourth Proportional to 10,479.60, 15,720.30 and 3,457.52

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Solution

The fourth proportional to 10,479.60, 15,720.30 and 3,457.52 is: 5,186.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.60 : 15,720.30 = 3,457.52 : x
  2. Step 2: Convert to fraction form
    10,479.60/15,720.30 = 3,457.52/x
  3. Step 3: Cross multiply
    10,479.60x = 15,720.30 × 3,457.52
  4. Step 4: Simplify right side
    10,479.60x = 54,353,251.66
  5. Step 5: Solve for x
    x = 54,353,251.66/10,479.60
  6. Step 6: Final answer
    x = 5,186.58

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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.