Home / 11,433.47-15,777.11-7,126.16

Finding the Fourth Proportional to 11,433.47, 15,777.11 and 7,126.16

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Solution

The fourth proportional to 11,433.47, 15,777.11 and 7,126.16 is: 9,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.47 : 15,777.11 = 7,126.16 : x
  2. Step 2: Convert to fraction form
    11,433.47/15,777.11 = 7,126.16/x
  3. Step 3: Cross multiply
    11,433.47x = 15,777.11 × 7,126.16
  4. Step 4: Simplify right side
    11,433.47x = 112,430,095.68
  5. Step 5: Solve for x
    x = 112,430,095.68/11,433.47
  6. Step 6: Final answer
    x = 9,833.42

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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.