Home / 11,394.28-15,750.66-10,929.16

Finding the Fourth Proportional to 11,394.28, 15,750.66 and 10,929.16

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Solution

The fourth proportional to 11,394.28, 15,750.66 and 10,929.16 is: 15,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.28 : 15,750.66 = 10,929.16 : x
  2. Step 2: Convert to fraction form
    11,394.28/15,750.66 = 10,929.16/x
  3. Step 3: Cross multiply
    11,394.28x = 15,750.66 × 10,929.16
  4. Step 4: Simplify right side
    11,394.28x = 172,141,483.25
  5. Step 5: Solve for x
    x = 172,141,483.25/11,394.28
  6. Step 6: Final answer
    x = 15,107.71

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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.