Home / 8,968.12-12,376.29-5,609.86

Finding the Fourth Proportional to 8,968.12, 12,376.29 and 5,609.86

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Solution

The fourth proportional to 8,968.12, 12,376.29 and 5,609.86 is: 7,741.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,968.12 : 12,376.29 = 5,609.86 : x
  2. Step 2: Convert to fraction form
    8,968.12/12,376.29 = 5,609.86/x
  3. Step 3: Cross multiply
    8,968.12x = 12,376.29 × 5,609.86
  4. Step 4: Simplify right side
    8,968.12x = 69,429,244.32
  5. Step 5: Solve for x
    x = 69,429,244.32/8,968.12
  6. Step 6: Final answer
    x = 7,741.79

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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.