Home / 9,970.97-13,760.09-5,722.72

Finding the Fourth Proportional to 9,970.97, 13,760.09 and 5,722.72

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Solution

The fourth proportional to 9,970.97, 13,760.09 and 5,722.72 is: 7,897.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,970.97 : 13,760.09 = 5,722.72 : x
  2. Step 2: Convert to fraction form
    9,970.97/13,760.09 = 5,722.72/x
  3. Step 3: Cross multiply
    9,970.97x = 13,760.09 × 5,722.72
  4. Step 4: Simplify right side
    9,970.97x = 78,745,113.63
  5. Step 5: Solve for x
    x = 78,745,113.63/9,970.97
  6. Step 6: Final answer
    x = 7,897.44

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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.