Home / 14,123.61-21,187.18-4,262.87

Finding the Fourth Proportional to 14,123.61, 21,187.18 and 4,262.87

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Solution

The fourth proportional to 14,123.61, 21,187.18 and 4,262.87 is: 6,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.61 : 21,187.18 = 4,262.87 : x
  2. Step 2: Convert to fraction form
    14,123.61/21,187.18 = 4,262.87/x
  3. Step 3: Cross multiply
    14,123.61x = 21,187.18 × 4,262.87
  4. Step 4: Simplify right side
    14,123.61x = 90,318,194.01
  5. Step 5: Solve for x
    x = 90,318,194.01/14,123.61
  6. Step 6: Final answer
    x = 6,394.84

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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.