Home / 11,239.22-15,497.97-7,656.50

Finding the Fourth Proportional to 11,239.22, 15,497.97 and 7,656.50

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Solution

The fourth proportional to 11,239.22, 15,497.97 and 7,656.50 is: 10,557.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.22 : 15,497.97 = 7,656.50 : x
  2. Step 2: Convert to fraction form
    11,239.22/15,497.97 = 7,656.50/x
  3. Step 3: Cross multiply
    11,239.22x = 15,497.97 × 7,656.50
  4. Step 4: Simplify right side
    11,239.22x = 118,660,207.31
  5. Step 5: Solve for x
    x = 118,660,207.31/11,239.22
  6. Step 6: Final answer
    x = 10,557.69

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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.