Home / 12,729.28-17,567.22-7,064.55

Finding the Fourth Proportional to 12,729.28, 17,567.22 and 7,064.55

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Solution

The fourth proportional to 12,729.28, 17,567.22 and 7,064.55 is: 9,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.28 : 17,567.22 = 7,064.55 : x
  2. Step 2: Convert to fraction form
    12,729.28/17,567.22 = 7,064.55/x
  3. Step 3: Cross multiply
    12,729.28x = 17,567.22 × 7,064.55
  4. Step 4: Simplify right side
    12,729.28x = 124,104,504.05
  5. Step 5: Solve for x
    x = 124,104,504.05/12,729.28
  6. Step 6: Final answer
    x = 9,749.53

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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.