Home / 18,123.95-25,011.18-10,165.97

Finding the Fourth Proportional to 18,123.95, 25,011.18 and 10,165.97

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Solution

The fourth proportional to 18,123.95, 25,011.18 and 10,165.97 is: 14,029.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.95 : 25,011.18 = 10,165.97 : x
  2. Step 2: Convert to fraction form
    18,123.95/25,011.18 = 10,165.97/x
  3. Step 3: Cross multiply
    18,123.95x = 25,011.18 × 10,165.97
  4. Step 4: Simplify right side
    18,123.95x = 254,262,968.07
  5. Step 5: Solve for x
    x = 254,262,968.07/18,123.95
  6. Step 6: Final answer
    x = 14,029.11

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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.