Home / 13,644.13-20,388.52-10,244.76

Finding the Fourth Proportional to 13,644.13, 20,388.52 and 10,244.76

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Solution

The fourth proportional to 13,644.13, 20,388.52 and 10,244.76 is: 15,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.13 : 20,388.52 = 10,244.76 : x
  2. Step 2: Convert to fraction form
    13,644.13/20,388.52 = 10,244.76/x
  3. Step 3: Cross multiply
    13,644.13x = 20,388.52 × 10,244.76
  4. Step 4: Simplify right side
    13,644.13x = 208,875,494.16
  5. Step 5: Solve for x
    x = 208,875,494.16/13,644.13
  6. Step 6: Final answer
    x = 15,308.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.