Home / 18,123.08-27,188.46-8,769.80

Finding the Fourth Proportional to 18,123.08, 27,188.46 and 8,769.80

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Solution

The fourth proportional to 18,123.08, 27,188.46 and 8,769.80 is: 13,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,123.08 : 27,188.46 = 8,769.80 : x
  2. Step 2: Convert to fraction form
    18,123.08/27,188.46 = 8,769.80/x
  3. Step 3: Cross multiply
    18,123.08x = 27,188.46 × 8,769.80
  4. Step 4: Simplify right side
    18,123.08x = 238,437,356.51
  5. Step 5: Solve for x
    x = 238,437,356.51/18,123.08
  6. Step 6: Final answer
    x = 13,156.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.