Home / 10,880.82-15,016.71-6,405.66

Finding the Fourth Proportional to 10,880.82, 15,016.71 and 6,405.66

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Solution

The fourth proportional to 10,880.82, 15,016.71 and 6,405.66 is: 8,840.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.82 : 15,016.71 = 6,405.66 : x
  2. Step 2: Convert to fraction form
    10,880.82/15,016.71 = 6,405.66/x
  3. Step 3: Cross multiply
    10,880.82x = 15,016.71 × 6,405.66
  4. Step 4: Simplify right side
    10,880.82x = 96,191,938.58
  5. Step 5: Solve for x
    x = 96,191,938.58/10,880.82
  6. Step 6: Final answer
    x = 8,840.50

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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.