Home / 11,249.31-15,503.49-7,465.80

Finding the Fourth Proportional to 11,249.31, 15,503.49 and 7,465.80

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Solution

The fourth proportional to 11,249.31, 15,503.49 and 7,465.80 is: 10,289.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.31 : 15,503.49 = 7,465.80 : x
  2. Step 2: Convert to fraction form
    11,249.31/15,503.49 = 7,465.80/x
  3. Step 3: Cross multiply
    11,249.31x = 15,503.49 × 7,465.80
  4. Step 4: Simplify right side
    11,249.31x = 115,745,955.64
  5. Step 5: Solve for x
    x = 115,745,955.64/11,249.31
  6. Step 6: Final answer
    x = 10,289.16

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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.