Home / 18,100.40-24,979.55-10,145.18

Finding the Fourth Proportional to 18,100.40, 24,979.55 and 10,145.18

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Solution

The fourth proportional to 18,100.40, 24,979.55 and 10,145.18 is: 14,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.40 : 24,979.55 = 10,145.18 : x
  2. Step 2: Convert to fraction form
    18,100.40/24,979.55 = 10,145.18/x
  3. Step 3: Cross multiply
    18,100.40x = 24,979.55 × 10,145.18
  4. Step 4: Simplify right side
    18,100.40x = 253,422,031.07
  5. Step 5: Solve for x
    x = 253,422,031.07/18,100.40
  6. Step 6: Final answer
    x = 14,000.91

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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.