Home / 7,412.85-11,125.08-3,255.72

Finding the Fourth Proportional to 7,412.85, 11,125.08 and 3,255.72

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Solution

The fourth proportional to 7,412.85, 11,125.08 and 3,255.72 is: 4,886.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.85 : 11,125.08 = 3,255.72 : x
  2. Step 2: Convert to fraction form
    7,412.85/11,125.08 = 3,255.72/x
  3. Step 3: Cross multiply
    7,412.85x = 11,125.08 × 3,255.72
  4. Step 4: Simplify right side
    7,412.85x = 36,220,145.46
  5. Step 5: Solve for x
    x = 36,220,145.46/7,412.85
  6. Step 6: Final answer
    x = 4,886.13

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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.