Home / 10,479.03-15,720.48-3,459.53

Finding the Fourth Proportional to 10,479.03, 15,720.48 and 3,459.53

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Solution

The fourth proportional to 10,479.03, 15,720.48 and 3,459.53 is: 5,189.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.03 : 15,720.48 = 3,459.53 : x
  2. Step 2: Convert to fraction form
    10,479.03/15,720.48 = 3,459.53/x
  3. Step 3: Cross multiply
    10,479.03x = 15,720.48 × 3,459.53
  4. Step 4: Simplify right side
    10,479.03x = 54,385,376.27
  5. Step 5: Solve for x
    x = 54,385,376.27/10,479.03
  6. Step 6: Final answer
    x = 5,189.93

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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.