Home / 18,542.40-25,588.08-10,158.72

Finding the Fourth Proportional to 18,542.40, 25,588.08 and 10,158.72

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Solution

The fourth proportional to 18,542.40, 25,588.08 and 10,158.72 is: 14,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,542.40 : 25,588.08 = 10,158.72 : x
  2. Step 2: Convert to fraction form
    18,542.40/25,588.08 = 10,158.72/x
  3. Step 3: Cross multiply
    18,542.40x = 25,588.08 × 10,158.72
  4. Step 4: Simplify right side
    18,542.40x = 259,942,140.06
  5. Step 5: Solve for x
    x = 259,942,140.06/18,542.40
  6. Step 6: Final answer
    x = 14,018.80

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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.