Home / 11,132.64-15,343.81-9,707.44

Finding the Fourth Proportional to 11,132.64, 15,343.81 and 9,707.44

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Solution

The fourth proportional to 11,132.64, 15,343.81 and 9,707.44 is: 13,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.64 : 15,343.81 = 9,707.44 : x
  2. Step 2: Convert to fraction form
    11,132.64/15,343.81 = 9,707.44/x
  3. Step 3: Cross multiply
    11,132.64x = 15,343.81 × 9,707.44
  4. Step 4: Simplify right side
    11,132.64x = 148,949,114.95
  5. Step 5: Solve for x
    x = 148,949,114.95/11,132.64
  6. Step 6: Final answer
    x = 13,379.50

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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.