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Finding the Fourth Proportional to 6,851.64, 9,445.50 and 5,525.40

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Solution

The fourth proportional to 6,851.64, 9,445.50 and 5,525.40 is: 7,617.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,851.64 : 9,445.50 = 5,525.40 : x
  2. Step 2: Convert to fraction form
    6,851.64/9,445.50 = 5,525.40/x
  3. Step 3: Cross multiply
    6,851.64x = 9,445.50 × 5,525.40
  4. Step 4: Simplify right side
    6,851.64x = 52,190,165.70
  5. Step 5: Solve for x
    x = 52,190,165.70/6,851.64
  6. Step 6: Final answer
    x = 7,617.18

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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.