Home / 8,919.48-12,309.66-7,597.56

Finding the Fourth Proportional to 8,919.48, 12,309.66 and 7,597.56

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Solution

The fourth proportional to 8,919.48, 12,309.66 and 7,597.56 is: 10,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.48 : 12,309.66 = 7,597.56 : x
  2. Step 2: Convert to fraction form
    8,919.48/12,309.66 = 7,597.56/x
  3. Step 3: Cross multiply
    8,919.48x = 12,309.66 × 7,597.56
  4. Step 4: Simplify right side
    8,919.48x = 93,523,380.43
  5. Step 5: Solve for x
    x = 93,523,380.43/8,919.48
  6. Step 6: Final answer
    x = 10,485.30

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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.