Home / 13,719.03-20,575.45-8,173.95

Finding the Fourth Proportional to 13,719.03, 20,575.45 and 8,173.95

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Solution

The fourth proportional to 13,719.03, 20,575.45 and 8,173.95 is: 12,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.03 : 20,575.45 = 8,173.95 : x
  2. Step 2: Convert to fraction form
    13,719.03/20,575.45 = 8,173.95/x
  3. Step 3: Cross multiply
    13,719.03x = 20,575.45 × 8,173.95
  4. Step 4: Simplify right side
    13,719.03x = 168,182,699.53
  5. Step 5: Solve for x
    x = 168,182,699.53/13,719.03
  6. Step 6: Final answer
    x = 12,259.08

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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.