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Finding the Fourth Proportional to 11,309.52, 15,599.88 and 7,110.48

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Solution

The fourth proportional to 11,309.52, 15,599.88 and 7,110.48 is: 9,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,309.52 : 15,599.88 = 7,110.48 : x
  2. Step 2: Convert to fraction form
    11,309.52/15,599.88 = 7,110.48/x
  3. Step 3: Cross multiply
    11,309.52x = 15,599.88 × 7,110.48
  4. Step 4: Simplify right side
    11,309.52x = 110,922,634.74
  5. Step 5: Solve for x
    x = 110,922,634.74/11,309.52
  6. Step 6: Final answer
    x = 9,807.90

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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.