Home / 13,690.02-20,543.18-5,792.11

Finding the Fourth Proportional to 13,690.02, 20,543.18 and 5,792.11

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Solution

The fourth proportional to 13,690.02, 20,543.18 and 5,792.11 is: 8,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.02 : 20,543.18 = 5,792.11 : x
  2. Step 2: Convert to fraction form
    13,690.02/20,543.18 = 5,792.11/x
  3. Step 3: Cross multiply
    13,690.02x = 20,543.18 × 5,792.11
  4. Step 4: Simplify right side
    13,690.02x = 118,988,358.31
  5. Step 5: Solve for x
    x = 118,988,358.31/13,690.02
  6. Step 6: Final answer
    x = 8,691.61

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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.