Home / 14,123.95-21,189.87-5,359.55

Finding the Fourth Proportional to 14,123.95, 21,189.87 and 5,359.55

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Solution

The fourth proportional to 14,123.95, 21,189.87 and 5,359.55 is: 8,040.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.95 : 21,189.87 = 5,359.55 : x
  2. Step 2: Convert to fraction form
    14,123.95/21,189.87 = 5,359.55/x
  3. Step 3: Cross multiply
    14,123.95x = 21,189.87 × 5,359.55
  4. Step 4: Simplify right side
    14,123.95x = 113,568,167.76
  5. Step 5: Solve for x
    x = 113,568,167.76/14,123.95
  6. Step 6: Final answer
    x = 8,040.82

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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.