Home / 10,656.45-15,987.02-3,261.49

Finding the Fourth Proportional to 10,656.45, 15,987.02 and 3,261.49

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Solution

The fourth proportional to 10,656.45, 15,987.02 and 3,261.49 is: 4,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.45 : 15,987.02 = 3,261.49 : x
  2. Step 2: Convert to fraction form
    10,656.45/15,987.02 = 3,261.49/x
  3. Step 3: Cross multiply
    10,656.45x = 15,987.02 × 3,261.49
  4. Step 4: Simplify right side
    10,656.45x = 52,141,449.58
  5. Step 5: Solve for x
    x = 52,141,449.58/10,656.45
  6. Step 6: Final answer
    x = 4,892.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.