Home / 10,882.97-15,021.70-7,106.72

Finding the Fourth Proportional to 10,882.97, 15,021.70 and 7,106.72

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Solution

The fourth proportional to 10,882.97, 15,021.70 and 7,106.72 is: 9,809.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,882.97 : 15,021.70 = 7,106.72 : x
  2. Step 2: Convert to fraction form
    10,882.97/15,021.70 = 7,106.72/x
  3. Step 3: Cross multiply
    10,882.97x = 15,021.70 × 7,106.72
  4. Step 4: Simplify right side
    10,882.97x = 106,754,962.92
  5. Step 5: Solve for x
    x = 106,754,962.92/10,882.97
  6. Step 6: Final answer
    x = 9,809.36

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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.