Home / 19,659.18-27,129.02-11,484.30

Finding the Fourth Proportional to 19,659.18, 27,129.02 and 11,484.30

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Solution

The fourth proportional to 19,659.18, 27,129.02 and 11,484.30 is: 15,847.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.18 : 27,129.02 = 11,484.30 : x
  2. Step 2: Convert to fraction form
    19,659.18/27,129.02 = 11,484.30/x
  3. Step 3: Cross multiply
    19,659.18x = 27,129.02 × 11,484.30
  4. Step 4: Simplify right side
    19,659.18x = 311,557,804.39
  5. Step 5: Solve for x
    x = 311,557,804.39/19,659.18
  6. Step 6: Final answer
    x = 15,847.96

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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.