Home / 13,508.54-20,248.97-5,186.40

Finding the Fourth Proportional to 13,508.54, 20,248.97 and 5,186.40

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Solution

The fourth proportional to 13,508.54, 20,248.97 and 5,186.40 is: 7,774.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.54 : 20,248.97 = 5,186.40 : x
  2. Step 2: Convert to fraction form
    13,508.54/20,248.97 = 5,186.40/x
  3. Step 3: Cross multiply
    13,508.54x = 20,248.97 × 5,186.40
  4. Step 4: Simplify right side
    13,508.54x = 105,019,232.08
  5. Step 5: Solve for x
    x = 105,019,232.08/13,508.54
  6. Step 6: Final answer
    x = 7,774.29

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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.