Home / 18,123.89-25,011.45-10,166.36

Finding the Fourth Proportional to 18,123.89, 25,011.45 and 10,166.36

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Solution

The fourth proportional to 18,123.89, 25,011.45 and 10,166.36 is: 14,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.89 : 25,011.45 = 10,166.36 : x
  2. Step 2: Convert to fraction form
    18,123.89/25,011.45 = 10,166.36/x
  3. Step 3: Cross multiply
    18,123.89x = 25,011.45 × 10,166.36
  4. Step 4: Simplify right side
    18,123.89x = 254,275,279.76
  5. Step 5: Solve for x
    x = 254,275,279.76/18,123.89
  6. Step 6: Final answer
    x = 14,029.84

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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.