Home / 11,129.04-15,360.66-6,655.52

Finding the Fourth Proportional to 11,129.04, 15,360.66 and 6,655.52

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Solution

The fourth proportional to 11,129.04, 15,360.66 and 6,655.52 is: 9,186.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.04 : 15,360.66 = 6,655.52 : x
  2. Step 2: Convert to fraction form
    11,129.04/15,360.66 = 6,655.52/x
  3. Step 3: Cross multiply
    11,129.04x = 15,360.66 × 6,655.52
  4. Step 4: Simplify right side
    11,129.04x = 102,233,179.84
  5. Step 5: Solve for x
    x = 102,233,179.84/11,129.04
  6. Step 6: Final answer
    x = 9,186.16

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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.