Home / 12,766.92-17,618.81-7,102.32

Finding the Fourth Proportional to 12,766.92, 17,618.81 and 7,102.32

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Solution

The fourth proportional to 12,766.92, 17,618.81 and 7,102.32 is: 9,801.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,766.92 : 17,618.81 = 7,102.32 : x
  2. Step 2: Convert to fraction form
    12,766.92/17,618.81 = 7,102.32/x
  3. Step 3: Cross multiply
    12,766.92x = 17,618.81 × 7,102.32
  4. Step 4: Simplify right side
    12,766.92x = 125,134,426.64
  5. Step 5: Solve for x
    x = 125,134,426.64/12,766.92
  6. Step 6: Final answer
    x = 9,801.46

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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.