Home / 11,139.60-16,701.30-4,562.40

Finding the Fourth Proportional to 11,139.60, 16,701.30 and 4,562.40

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Solution

The fourth proportional to 11,139.60, 16,701.30 and 4,562.40 is: 6,840.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.60 : 16,701.30 = 4,562.40 : x
  2. Step 2: Convert to fraction form
    11,139.60/16,701.30 = 4,562.40/x
  3. Step 3: Cross multiply
    11,139.60x = 16,701.30 × 4,562.40
  4. Step 4: Simplify right side
    11,139.60x = 76,198,011.12
  5. Step 5: Solve for x
    x = 76,198,011.12/11,139.60
  6. Step 6: Final answer
    x = 6,840.28

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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.