Home / 19,142.40-26,410.80-11,591.52

Finding the Fourth Proportional to 19,142.40, 26,410.80 and 11,591.52

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Solution

The fourth proportional to 19,142.40, 26,410.80 and 11,591.52 is: 15,992.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,142.40 : 26,410.80 = 11,591.52 : x
  2. Step 2: Convert to fraction form
    19,142.40/26,410.80 = 11,591.52/x
  3. Step 3: Cross multiply
    19,142.40x = 26,410.80 × 11,591.52
  4. Step 4: Simplify right side
    19,142.40x = 306,141,316.42
  5. Step 5: Solve for x
    x = 306,141,316.42/19,142.40
  6. Step 6: Final answer
    x = 15,992.84

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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.