Home / 18,142.86-25,037.10-10,185.87

Finding the Fourth Proportional to 18,142.86, 25,037.10 and 10,185.87

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Solution

The fourth proportional to 18,142.86, 25,037.10 and 10,185.87 is: 14,056.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.86 : 25,037.10 = 10,185.87 : x
  2. Step 2: Convert to fraction form
    18,142.86/25,037.10 = 10,185.87/x
  3. Step 3: Cross multiply
    18,142.86x = 25,037.10 × 10,185.87
  4. Step 4: Simplify right side
    18,142.86x = 255,024,645.78
  5. Step 5: Solve for x
    x = 255,024,645.78/18,142.86
  6. Step 6: Final answer
    x = 14,056.47

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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.