Home / 15,921.92-21,968.88-9,553.16

Finding the Fourth Proportional to 15,921.92, 21,968.88 and 9,553.16

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Solution

The fourth proportional to 15,921.92, 21,968.88 and 9,553.16 is: 13,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.92 : 21,968.88 = 9,553.16 : x
  2. Step 2: Convert to fraction form
    15,921.92/21,968.88 = 9,553.16/x
  3. Step 3: Cross multiply
    15,921.92x = 21,968.88 × 9,553.16
  4. Step 4: Simplify right side
    15,921.92x = 209,872,225.66
  5. Step 5: Solve for x
    x = 209,872,225.66/15,921.92
  6. Step 6: Final answer
    x = 13,181.34

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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.