Home / 18,116.76-25,000.75-10,158.82

Finding the Fourth Proportional to 18,116.76, 25,000.75 and 10,158.82

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Solution

The fourth proportional to 18,116.76, 25,000.75 and 10,158.82 is: 14,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116.76 : 25,000.75 = 10,158.82 : x
  2. Step 2: Convert to fraction form
    18,116.76/25,000.75 = 10,158.82/x
  3. Step 3: Cross multiply
    18,116.76x = 25,000.75 × 10,158.82
  4. Step 4: Simplify right side
    18,116.76x = 253,978,069.31
  5. Step 5: Solve for x
    x = 253,978,069.31/18,116.76
  6. Step 6: Final answer
    x = 14,018.95

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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.