Home / 12,968.42-17,871.45-9,426.02

Finding the Fourth Proportional to 12,968.42, 17,871.45 and 9,426.02

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Solution

The fourth proportional to 12,968.42, 17,871.45 and 9,426.02 is: 12,989.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.42 : 17,871.45 = 9,426.02 : x
  2. Step 2: Convert to fraction form
    12,968.42/17,871.45 = 9,426.02/x
  3. Step 3: Cross multiply
    12,968.42x = 17,871.45 × 9,426.02
  4. Step 4: Simplify right side
    12,968.42x = 168,456,645.13
  5. Step 5: Solve for x
    x = 168,456,645.13/12,968.42
  6. Step 6: Final answer
    x = 12,989.76

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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.