Home / 13,820.02-20,732.15-4,934.72

Finding the Fourth Proportional to 13,820.02, 20,732.15 and 4,934.72

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Solution

The fourth proportional to 13,820.02, 20,732.15 and 4,934.72 is: 7,402.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.02 : 20,732.15 = 4,934.72 : x
  2. Step 2: Convert to fraction form
    13,820.02/20,732.15 = 4,934.72/x
  3. Step 3: Cross multiply
    13,820.02x = 20,732.15 × 4,934.72
  4. Step 4: Simplify right side
    13,820.02x = 102,307,419.42
  5. Step 5: Solve for x
    x = 102,307,419.42/13,820.02
  6. Step 6: Final answer
    x = 7,402.84

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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.