Home / 18,180.90-27,261.63-6,487.74

Finding the Fourth Proportional to 18,180.90, 27,261.63 and 6,487.74

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Solution

The fourth proportional to 18,180.90, 27,261.63 and 6,487.74 is: 9,728.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.90 : 27,261.63 = 6,487.74 : x
  2. Step 2: Convert to fraction form
    18,180.90/27,261.63 = 6,487.74/x
  3. Step 3: Cross multiply
    18,180.90x = 27,261.63 × 6,487.74
  4. Step 4: Simplify right side
    18,180.90x = 176,866,367.42
  5. Step 5: Solve for x
    x = 176,866,367.42/18,180.90
  6. Step 6: Final answer
    x = 9,728.14

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1.5x scale

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.