Home / 18,407.40-27,612.06-5,261.76

Finding the Fourth Proportional to 18,407.40, 27,612.06 and 5,261.76

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Solution

The fourth proportional to 18,407.40, 27,612.06 and 5,261.76 is: 7,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.40 : 27,612.06 = 5,261.76 : x
  2. Step 2: Convert to fraction form
    18,407.40/27,612.06 = 5,261.76/x
  3. Step 3: Cross multiply
    18,407.40x = 27,612.06 × 5,261.76
  4. Step 4: Simplify right side
    18,407.40x = 145,288,032.83
  5. Step 5: Solve for x
    x = 145,288,032.83/18,407.40
  6. Step 6: Final answer
    x = 7,892.91

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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.