Home / 11,070.32-15,265.32-7,091.60

Finding the Fourth Proportional to 11,070.32, 15,265.32 and 7,091.60

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Solution

The fourth proportional to 11,070.32, 15,265.32 and 7,091.60 is: 9,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,070.32 : 15,265.32 = 7,091.60 : x
  2. Step 2: Convert to fraction form
    11,070.32/15,265.32 = 7,091.60/x
  3. Step 3: Cross multiply
    11,070.32x = 15,265.32 × 7,091.60
  4. Step 4: Simplify right side
    11,070.32x = 108,255,543.31
  5. Step 5: Solve for x
    x = 108,255,543.31/11,070.32
  6. Step 6: Final answer
    x = 9,778.90

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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.