Home / 11,138.10-16,711.65-4,899.30

Finding the Fourth Proportional to 11,138.10, 16,711.65 and 4,899.30

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Solution

The fourth proportional to 11,138.10, 16,711.65 and 4,899.30 is: 7,350.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.10 : 16,711.65 = 4,899.30 : x
  2. Step 2: Convert to fraction form
    11,138.10/16,711.65 = 4,899.30/x
  3. Step 3: Cross multiply
    11,138.10x = 16,711.65 × 4,899.30
  4. Step 4: Simplify right side
    11,138.10x = 81,875,386.85
  5. Step 5: Solve for x
    x = 81,875,386.85/11,138.10
  6. Step 6: Final answer
    x = 7,350.93

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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.