Home / 12,367.28-18,549.56-8,889.95

Finding the Fourth Proportional to 12,367.28, 18,549.56 and 8,889.95

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Solution

The fourth proportional to 12,367.28, 18,549.56 and 8,889.95 is: 13,333.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,367.28 : 18,549.56 = 8,889.95 : x
  2. Step 2: Convert to fraction form
    12,367.28/18,549.56 = 8,889.95/x
  3. Step 3: Cross multiply
    12,367.28x = 18,549.56 × 8,889.95
  4. Step 4: Simplify right side
    12,367.28x = 164,904,679.51
  5. Step 5: Solve for x
    x = 164,904,679.51/12,367.28
  6. Step 6: Final answer
    x = 13,333.95

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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.