Home / 15,881.36-21,915.24-9,597.20

Finding the Fourth Proportional to 15,881.36, 21,915.24 and 9,597.20

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Solution

The fourth proportional to 15,881.36, 21,915.24 and 9,597.20 is: 13,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881.36 : 21,915.24 = 9,597.20 : x
  2. Step 2: Convert to fraction form
    15,881.36/21,915.24 = 9,597.20/x
  3. Step 3: Cross multiply
    15,881.36x = 21,915.24 × 9,597.20
  4. Step 4: Simplify right side
    15,881.36x = 210,324,941.33
  5. Step 5: Solve for x
    x = 210,324,941.33/15,881.36
  6. Step 6: Final answer
    x = 13,243.51

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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.