Home / 12,331.28-17,017.04-6,742.32

Finding the Fourth Proportional to 12,331.28, 17,017.04 and 6,742.32

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Solution

The fourth proportional to 12,331.28, 17,017.04 and 6,742.32 is: 9,304.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.28 : 17,017.04 = 6,742.32 : x
  2. Step 2: Convert to fraction form
    12,331.28/17,017.04 = 6,742.32/x
  3. Step 3: Cross multiply
    12,331.28x = 17,017.04 × 6,742.32
  4. Step 4: Simplify right side
    12,331.28x = 114,734,329.13
  5. Step 5: Solve for x
    x = 114,734,329.13/12,331.28
  6. Step 6: Final answer
    x = 9,304.33

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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.