Home / 12,512.35-17,266.60-7,475.40

Finding the Fourth Proportional to 12,512.35, 17,266.60 and 7,475.40

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Solution

The fourth proportional to 12,512.35, 17,266.60 and 7,475.40 is: 10,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.35 : 17,266.60 = 7,475.40 : x
  2. Step 2: Convert to fraction form
    12,512.35/17,266.60 = 7,475.40/x
  3. Step 3: Cross multiply
    12,512.35x = 17,266.60 × 7,475.40
  4. Step 4: Simplify right side
    12,512.35x = 129,074,741.64
  5. Step 5: Solve for x
    x = 129,074,741.64/12,512.35
  6. Step 6: Final answer
    x = 10,315.79

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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.