Home / 10,927.62-15,075.80-6,728.58

Finding the Fourth Proportional to 10,927.62, 15,075.80 and 6,728.58

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Solution

The fourth proportional to 10,927.62, 15,075.80 and 6,728.58 is: 9,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.62 : 15,075.80 = 6,728.58 : x
  2. Step 2: Convert to fraction form
    10,927.62/15,075.80 = 6,728.58/x
  3. Step 3: Cross multiply
    10,927.62x = 15,075.80 × 6,728.58
  4. Step 4: Simplify right side
    10,927.62x = 101,438,726.36
  5. Step 5: Solve for x
    x = 101,438,726.36/10,927.62
  6. Step 6: Final answer
    x = 9,282.78

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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.