Home / 6,947.50-9,587.61-4,115.03

Finding the Fourth Proportional to 6,947.50, 9,587.61 and 4,115.03

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Solution

The fourth proportional to 6,947.50, 9,587.61 and 4,115.03 is: 5,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,947.50 : 9,587.61 = 4,115.03 : x
  2. Step 2: Convert to fraction form
    6,947.50/9,587.61 = 4,115.03/x
  3. Step 3: Cross multiply
    6,947.50x = 9,587.61 × 4,115.03
  4. Step 4: Simplify right side
    6,947.50x = 39,453,302.78
  5. Step 5: Solve for x
    x = 39,453,302.78/6,947.50
  6. Step 6: Final answer
    x = 5,678.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.