Home / 12,988.24-17,922.45-7,682.02

Finding the Fourth Proportional to 12,988.24, 17,922.45 and 7,682.02

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Solution

The fourth proportional to 12,988.24, 17,922.45 and 7,682.02 is: 10,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988.24 : 17,922.45 = 7,682.02 : x
  2. Step 2: Convert to fraction form
    12,988.24/17,922.45 = 7,682.02/x
  3. Step 3: Cross multiply
    12,988.24x = 17,922.45 × 7,682.02
  4. Step 4: Simplify right side
    12,988.24x = 137,680,619.35
  5. Step 5: Solve for x
    x = 137,680,619.35/12,988.24
  6. Step 6: Final answer
    x = 10,600.41

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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.