Home / 12,335.55-17,012.30-8,743.40

Finding the Fourth Proportional to 12,335.55, 17,012.30 and 8,743.40

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Solution

The fourth proportional to 12,335.55, 17,012.30 and 8,743.40 is: 12,058.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,335.55 : 17,012.30 = 8,743.40 : x
  2. Step 2: Convert to fraction form
    12,335.55/17,012.30 = 8,743.40/x
  3. Step 3: Cross multiply
    12,335.55x = 17,012.30 × 8,743.40
  4. Step 4: Simplify right side
    12,335.55x = 148,745,278.84
  5. Step 5: Solve for x
    x = 148,745,278.84/12,335.55
  6. Step 6: Final answer
    x = 12,058.26

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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.