Home / 13,760.60-18,989.28-7,792.84

Finding the Fourth Proportional to 13,760.60, 18,989.28 and 7,792.84

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Solution

The fourth proportional to 13,760.60, 18,989.28 and 7,792.84 is: 10,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760.60 : 18,989.28 = 7,792.84 : x
  2. Step 2: Convert to fraction form
    13,760.60/18,989.28 = 7,792.84/x
  3. Step 3: Cross multiply
    13,760.60x = 18,989.28 × 7,792.84
  4. Step 4: Simplify right side
    13,760.60x = 147,980,420.76
  5. Step 5: Solve for x
    x = 147,980,420.76/13,760.60
  6. Step 6: Final answer
    x = 10,753.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.