Home / 8,845.20-12,198.60-5,307.12

Finding the Fourth Proportional to 8,845.20, 12,198.60 and 5,307.12

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Solution

The fourth proportional to 8,845.20, 12,198.60 and 5,307.12 is: 7,319.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,845.20 : 12,198.60 = 5,307.12 : x
  2. Step 2: Convert to fraction form
    8,845.20/12,198.60 = 5,307.12/x
  3. Step 3: Cross multiply
    8,845.20x = 12,198.60 × 5,307.12
  4. Step 4: Simplify right side
    8,845.20x = 64,739,434.03
  5. Step 5: Solve for x
    x = 64,739,434.03/8,845.20
  6. Step 6: Final answer
    x = 7,319.16

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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.