Home / 8,784.32-12,122.40-4,805.44

Finding the Fourth Proportional to 8,784.32, 12,122.40 and 4,805.44

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Solution

The fourth proportional to 8,784.32, 12,122.40 and 4,805.44 is: 6,631.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.32 : 12,122.40 = 4,805.44 : x
  2. Step 2: Convert to fraction form
    8,784.32/12,122.40 = 4,805.44/x
  3. Step 3: Cross multiply
    8,784.32x = 12,122.40 × 4,805.44
  4. Step 4: Simplify right side
    8,784.32x = 58,253,465.86
  5. Step 5: Solve for x
    x = 58,253,465.86/8,784.32
  6. Step 6: Final answer
    x = 6,631.53

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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.