Home / 11,210.38-16,815.50-3,419.19

Finding the Fourth Proportional to 11,210.38, 16,815.50 and 3,419.19

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Solution

The fourth proportional to 11,210.38, 16,815.50 and 3,419.19 is: 5,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.38 : 16,815.50 = 3,419.19 : x
  2. Step 2: Convert to fraction form
    11,210.38/16,815.50 = 3,419.19/x
  3. Step 3: Cross multiply
    11,210.38x = 16,815.50 × 3,419.19
  4. Step 4: Simplify right side
    11,210.38x = 57,495,385.17
  5. Step 5: Solve for x
    x = 57,495,385.17/11,210.38
  6. Step 6: Final answer
    x = 5,128.76

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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.