Home / 12,637.11-17,439.29-6,972.03

Finding the Fourth Proportional to 12,637.11, 17,439.29 and 6,972.03

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Solution

The fourth proportional to 12,637.11, 17,439.29 and 6,972.03 is: 9,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.11 : 17,439.29 = 6,972.03 : x
  2. Step 2: Convert to fraction form
    12,637.11/17,439.29 = 6,972.03/x
  3. Step 3: Cross multiply
    12,637.11x = 17,439.29 × 6,972.03
  4. Step 4: Simplify right side
    12,637.11x = 121,587,218.20
  5. Step 5: Solve for x
    x = 121,587,218.20/12,637.11
  6. Step 6: Final answer
    x = 9,621.44

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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.