Home / 13,615.54-20,424.56-5,296.18

Finding the Fourth Proportional to 13,615.54, 20,424.56 and 5,296.18

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Solution

The fourth proportional to 13,615.54, 20,424.56 and 5,296.18 is: 7,944.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.54 : 20,424.56 = 5,296.18 : x
  2. Step 2: Convert to fraction form
    13,615.54/20,424.56 = 5,296.18/x
  3. Step 3: Cross multiply
    13,615.54x = 20,424.56 × 5,296.18
  4. Step 4: Simplify right side
    13,615.54x = 108,172,146.18
  5. Step 5: Solve for x
    x = 108,172,146.18/13,615.54
  6. Step 6: Final answer
    x = 7,944.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.