Home / 11,089.88-15,278.02-7,726.59

Finding the Fourth Proportional to 11,089.88, 15,278.02 and 7,726.59

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Solution

The fourth proportional to 11,089.88, 15,278.02 and 7,726.59 is: 10,644.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,089.88 : 15,278.02 = 7,726.59 : x
  2. Step 2: Convert to fraction form
    11,089.88/15,278.02 = 7,726.59/x
  3. Step 3: Cross multiply
    11,089.88x = 15,278.02 × 7,726.59
  4. Step 4: Simplify right side
    11,089.88x = 118,046,977.24
  5. Step 5: Solve for x
    x = 118,046,977.24/11,089.88
  6. Step 6: Final answer
    x = 10,644.57

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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.