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Finding the Fourth Proportional to 6,695.31, 9,240.62 and 6,400.02

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Solution

The fourth proportional to 6,695.31, 9,240.62 and 6,400.02 is: 8,833.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,695.31 : 9,240.62 = 6,400.02 : x
  2. Step 2: Convert to fraction form
    6,695.31/9,240.62 = 6,400.02/x
  3. Step 3: Cross multiply
    6,695.31x = 9,240.62 × 6,400.02
  4. Step 4: Simplify right side
    6,695.31x = 59,140,120.81
  5. Step 5: Solve for x
    x = 59,140,120.81/6,695.31
  6. Step 6: Final answer
    x = 8,833.07

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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.