Home / 18,123.60-25,009.92-10,166.16

Finding the Fourth Proportional to 18,123.60, 25,009.92 and 10,166.16

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Solution

The fourth proportional to 18,123.60, 25,009.92 and 10,166.16 is: 14,028.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.60 : 25,009.92 = 10,166.16 : x
  2. Step 2: Convert to fraction form
    18,123.60/25,009.92 = 10,166.16/x
  3. Step 3: Cross multiply
    18,123.60x = 25,009.92 × 10,166.16
  4. Step 4: Simplify right side
    18,123.60x = 254,254,848.31
  5. Step 5: Solve for x
    x = 254,254,848.31/18,123.60
  6. Step 6: Final answer
    x = 14,028.94

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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.