Home / 15,915.24-21,959.55-9,627.48

Finding the Fourth Proportional to 15,915.24, 21,959.55 and 9,627.48

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Solution

The fourth proportional to 15,915.24, 21,959.55 and 9,627.48 is: 13,283.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,915.24 : 21,959.55 = 9,627.48 : x
  2. Step 2: Convert to fraction form
    15,915.24/21,959.55 = 9,627.48/x
  3. Step 3: Cross multiply
    15,915.24x = 21,959.55 × 9,627.48
  4. Step 4: Simplify right side
    15,915.24x = 211,415,128.43
  5. Step 5: Solve for x
    x = 211,415,128.43/15,915.24
  6. Step 6: Final answer
    x = 13,283.82

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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.