Home / 11,445.60-15,790.80-6,967.92

Finding the Fourth Proportional to 11,445.60, 15,790.80 and 6,967.92

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Solution

The fourth proportional to 11,445.60, 15,790.80 and 6,967.92 is: 9,613.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.60 : 15,790.80 = 6,967.92 : x
  2. Step 2: Convert to fraction form
    11,445.60/15,790.80 = 6,967.92/x
  3. Step 3: Cross multiply
    11,445.60x = 15,790.80 × 6,967.92
  4. Step 4: Simplify right side
    11,445.60x = 110,029,031.14
  5. Step 5: Solve for x
    x = 110,029,031.14/11,445.60
  6. Step 6: Final answer
    x = 9,613.22

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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.