Home / 11,436.28-17,124.32-9,203.20

Finding the Fourth Proportional to 11,436.28, 17,124.32 and 9,203.20

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Solution

The fourth proportional to 11,436.28, 17,124.32 and 9,203.20 is: 13,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.28 : 17,124.32 = 9,203.20 : x
  2. Step 2: Convert to fraction form
    11,436.28/17,124.32 = 9,203.20/x
  3. Step 3: Cross multiply
    11,436.28x = 17,124.32 × 9,203.20
  4. Step 4: Simplify right side
    11,436.28x = 157,598,541.82
  5. Step 5: Solve for x
    x = 157,598,541.82/11,436.28
  6. Step 6: Final answer
    x = 13,780.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.