Home / 11,707.20-17,542.48-7,311.36

Finding the Fourth Proportional to 11,707.20, 17,542.48 and 7,311.36

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Solution

The fourth proportional to 11,707.20, 17,542.48 and 7,311.36 is: 10,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.20 : 17,542.48 = 7,311.36 : x
  2. Step 2: Convert to fraction form
    11,707.20/17,542.48 = 7,311.36/x
  3. Step 3: Cross multiply
    11,707.20x = 17,542.48 × 7,311.36
  4. Step 4: Simplify right side
    11,707.20x = 128,259,386.57
  5. Step 5: Solve for x
    x = 128,259,386.57/11,707.20
  6. Step 6: Final answer
    x = 10,955.60

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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.