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Finding the Fourth Proportional to 8,347.64, 11,507.44 and 6,354.72

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Solution

The fourth proportional to 8,347.64, 11,507.44 and 6,354.72 is: 8,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.64 : 11,507.44 = 6,354.72 : x
  2. Step 2: Convert to fraction form
    8,347.64/11,507.44 = 6,354.72/x
  3. Step 3: Cross multiply
    8,347.64x = 11,507.44 × 6,354.72
  4. Step 4: Simplify right side
    8,347.64x = 73,126,559.12
  5. Step 5: Solve for x
    x = 73,126,559.12/8,347.64
  6. Step 6: Final answer
    x = 8,760.15

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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.