Home / 11,369.12-15,699.30-7,127.46

Finding the Fourth Proportional to 11,369.12, 15,699.30 and 7,127.46

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Solution

The fourth proportional to 11,369.12, 15,699.30 and 7,127.46 is: 9,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,369.12 : 15,699.30 = 7,127.46 : x
  2. Step 2: Convert to fraction form
    11,369.12/15,699.30 = 7,127.46/x
  3. Step 3: Cross multiply
    11,369.12x = 15,699.30 × 7,127.46
  4. Step 4: Simplify right side
    11,369.12x = 111,896,132.78
  5. Step 5: Solve for x
    x = 111,896,132.78/11,369.12
  6. Step 6: Final answer
    x = 9,842.11

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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.