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Finding the Fourth Proportional to 8,445.66, 11,655.01 and 4,719.66

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Solution

The fourth proportional to 8,445.66, 11,655.01 and 4,719.66 is: 6,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.66 : 11,655.01 = 4,719.66 : x
  2. Step 2: Convert to fraction form
    8,445.66/11,655.01 = 4,719.66/x
  3. Step 3: Cross multiply
    8,445.66x = 11,655.01 × 4,719.66
  4. Step 4: Simplify right side
    8,445.66x = 55,007,646.69
  5. Step 5: Solve for x
    x = 55,007,646.69/8,445.66
  6. Step 6: Final answer
    x = 6,513.13

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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.