Home / 11,335.55-15,625.71-7,969.19

Finding the Fourth Proportional to 11,335.55, 15,625.71 and 7,969.19

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Solution

The fourth proportional to 11,335.55, 15,625.71 and 7,969.19 is: 10,985.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,335.55 : 15,625.71 = 7,969.19 : x
  2. Step 2: Convert to fraction form
    11,335.55/15,625.71 = 7,969.19/x
  3. Step 3: Cross multiply
    11,335.55x = 15,625.71 × 7,969.19
  4. Step 4: Simplify right side
    11,335.55x = 124,524,173.75
  5. Step 5: Solve for x
    x = 124,524,173.75/11,335.55
  6. Step 6: Final answer
    x = 10,985.28

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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.