Home / 15,955.76-22,021.56-9,244.40

Finding the Fourth Proportional to 15,955.76, 22,021.56 and 9,244.40

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Solution

The fourth proportional to 15,955.76, 22,021.56 and 9,244.40 is: 12,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,955.76 : 22,021.56 = 9,244.40 : x
  2. Step 2: Convert to fraction form
    15,955.76/22,021.56 = 9,244.40/x
  3. Step 3: Cross multiply
    15,955.76x = 22,021.56 × 9,244.40
  4. Step 4: Simplify right side
    15,955.76x = 203,576,109.26
  5. Step 5: Solve for x
    x = 203,576,109.26/15,955.76
  6. Step 6: Final answer
    x = 12,758.78

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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.