Home / 8,447.20-11,656.79-4,670.12

Finding the Fourth Proportional to 8,447.20, 11,656.79 and 4,670.12

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Solution

The fourth proportional to 8,447.20, 11,656.79 and 4,670.12 is: 6,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.20 : 11,656.79 = 4,670.12 : x
  2. Step 2: Convert to fraction form
    8,447.20/11,656.79 = 4,670.12/x
  3. Step 3: Cross multiply
    8,447.20x = 11,656.79 × 4,670.12
  4. Step 4: Simplify right side
    8,447.20x = 54,438,631.42
  5. Step 5: Solve for x
    x = 54,438,631.42/8,447.20
  6. Step 6: Final answer
    x = 6,444.58

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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.