Home / 11,496.08-15,848.52-9,720.56

Finding the Fourth Proportional to 11,496.08, 15,848.52 and 9,720.56

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Solution

The fourth proportional to 11,496.08, 15,848.52 and 9,720.56 is: 13,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,496.08 : 15,848.52 = 9,720.56 : x
  2. Step 2: Convert to fraction form
    11,496.08/15,848.52 = 9,720.56/x
  3. Step 3: Cross multiply
    11,496.08x = 15,848.52 × 9,720.56
  4. Step 4: Simplify right side
    11,496.08x = 154,056,489.57
  5. Step 5: Solve for x
    x = 154,056,489.57/11,496.08
  6. Step 6: Final answer
    x = 13,400.78

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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.