Home / 18,123.72-25,010.34-10,165.74

Finding the Fourth Proportional to 18,123.72, 25,010.34 and 10,165.74

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Solution

The fourth proportional to 18,123.72, 25,010.34 and 10,165.74 is: 14,028.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.72 : 25,010.34 = 10,165.74 : x
  2. Step 2: Convert to fraction form
    18,123.72/25,010.34 = 10,165.74/x
  3. Step 3: Cross multiply
    18,123.72x = 25,010.34 × 10,165.74
  4. Step 4: Simplify right side
    18,123.72x = 254,248,613.75
  5. Step 5: Solve for x
    x = 254,248,613.75/18,123.72
  6. Step 6: Final answer
    x = 14,028.50

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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.