Home / 9,966.20-14,943.90-4,123.40

Finding the Fourth Proportional to 9,966.20, 14,943.90 and 4,123.40

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Solution

The fourth proportional to 9,966.20, 14,943.90 and 4,123.40 is: 6,182.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.20 : 14,943.90 = 4,123.40 : x
  2. Step 2: Convert to fraction form
    9,966.20/14,943.90 = 4,123.40/x
  3. Step 3: Cross multiply
    9,966.20x = 14,943.90 × 4,123.40
  4. Step 4: Simplify right side
    9,966.20x = 61,619,677.26
  5. Step 5: Solve for x
    x = 61,619,677.26/9,966.20
  6. Step 6: Final answer
    x = 6,182.87

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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.