Home / 12,331.36-17,017.40-6,742.36

Finding the Fourth Proportional to 12,331.36, 17,017.40 and 6,742.36

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Solution

The fourth proportional to 12,331.36, 17,017.40 and 6,742.36 is: 9,304.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,331.36 : 17,017.40 = 6,742.36 : x
  2. Step 2: Convert to fraction form
    12,331.36/17,017.40 = 6,742.36/x
  3. Step 3: Cross multiply
    12,331.36x = 17,017.40 × 6,742.36
  4. Step 4: Simplify right side
    12,331.36x = 114,737,437.06
  5. Step 5: Solve for x
    x = 114,737,437.06/12,331.36
  6. Step 6: Final answer
    x = 9,304.52

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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.