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Finding the Fourth Proportional to 6,338.66, 8,740.71 and 5,445.63

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Solution

The fourth proportional to 6,338.66, 8,740.71 and 5,445.63 is: 7,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338.66 : 8,740.71 = 5,445.63 : x
  2. Step 2: Convert to fraction form
    6,338.66/8,740.71 = 5,445.63/x
  3. Step 3: Cross multiply
    6,338.66x = 8,740.71 × 5,445.63
  4. Step 4: Simplify right side
    6,338.66x = 47,598,672.60
  5. Step 5: Solve for x
    x = 47,598,672.60/6,338.66
  6. Step 6: Final answer
    x = 7,509.27

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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.