Home / 11,290.46-15,581.72-6,255.15

Finding the Fourth Proportional to 11,290.46, 15,581.72 and 6,255.15

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Solution

The fourth proportional to 11,290.46, 15,581.72 and 6,255.15 is: 8,632.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.46 : 15,581.72 = 6,255.15 : x
  2. Step 2: Convert to fraction form
    11,290.46/15,581.72 = 6,255.15/x
  3. Step 3: Cross multiply
    11,290.46x = 15,581.72 × 6,255.15
  4. Step 4: Simplify right side
    11,290.46x = 97,465,999.77
  5. Step 5: Solve for x
    x = 97,465,999.77/11,290.46
  6. Step 6: Final answer
    x = 8,632.59

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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.