Home / 15,648.96-21,593.28-9,360

Finding the Fourth Proportional to 15,648.96, 21,593.28 and 9,360

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Solution

The fourth proportional to 15,648.96, 21,593.28 and 9,360 is: 12,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,648.96 : 21,593.28 = 9,360 : x
  2. Step 2: Convert to fraction form
    15,648.96/21,593.28 = 9,360/x
  3. Step 3: Cross multiply
    15,648.96x = 21,593.28 × 9,360
  4. Step 4: Simplify right side
    15,648.96x = 202,113,100.80
  5. Step 5: Solve for x
    x = 202,113,100.80/15,648.96
  6. Step 6: Final answer
    x = 12,915.43

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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.