Home / 11,161.52-15,386.45-8,504.32

Finding the Fourth Proportional to 11,161.52, 15,386.45 and 8,504.32

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Solution

The fourth proportional to 11,161.52, 15,386.45 and 8,504.32 is: 11,723.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,161.52 : 15,386.45 = 8,504.32 : x
  2. Step 2: Convert to fraction form
    11,161.52/15,386.45 = 8,504.32/x
  3. Step 3: Cross multiply
    11,161.52x = 15,386.45 × 8,504.32
  4. Step 4: Simplify right side
    11,161.52x = 130,851,294.46
  5. Step 5: Solve for x
    x = 130,851,294.46/11,161.52
  6. Step 6: Final answer
    x = 11,723.43

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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.