Home / 7,115.68-10,659.20-3,547.04

Finding the Fourth Proportional to 7,115.68, 10,659.20 and 3,547.04

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Solution

The fourth proportional to 7,115.68, 10,659.20 and 3,547.04 is: 5,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.68 : 10,659.20 = 3,547.04 : x
  2. Step 2: Convert to fraction form
    7,115.68/10,659.20 = 3,547.04/x
  3. Step 3: Cross multiply
    7,115.68x = 10,659.20 × 3,547.04
  4. Step 4: Simplify right side
    7,115.68x = 37,808,608.77
  5. Step 5: Solve for x
    x = 37,808,608.77/7,115.68
  6. Step 6: Final answer
    x = 5,313.42

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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.