Home / 18,315.75-25,275.74-9,932.25

Finding the Fourth Proportional to 18,315.75, 25,275.74 and 9,932.25

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Solution

The fourth proportional to 18,315.75, 25,275.74 and 9,932.25 is: 13,706.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.75 : 25,275.74 = 9,932.25 : x
  2. Step 2: Convert to fraction form
    18,315.75/25,275.74 = 9,932.25/x
  3. Step 3: Cross multiply
    18,315.75x = 25,275.74 × 9,932.25
  4. Step 4: Simplify right side
    18,315.75x = 251,044,918.95
  5. Step 5: Solve for x
    x = 251,044,918.95/18,315.75
  6. Step 6: Final answer
    x = 13,706.51

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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.