Home / 9,913.37-13,679.46-5,722.97

Finding the Fourth Proportional to 9,913.37, 13,679.46 and 5,722.97

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Solution

The fourth proportional to 9,913.37, 13,679.46 and 5,722.97 is: 7,897.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.37 : 13,679.46 = 5,722.97 : x
  2. Step 2: Convert to fraction form
    9,913.37/13,679.46 = 5,722.97/x
  3. Step 3: Cross multiply
    9,913.37x = 13,679.46 × 5,722.97
  4. Step 4: Simplify right side
    9,913.37x = 78,287,139.20
  5. Step 5: Solve for x
    x = 78,287,139.20/9,913.37
  6. Step 6: Final answer
    x = 7,897.13

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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.