Home / 18,659.04-27,980.30-9,891.92

Finding the Fourth Proportional to 18,659.04, 27,980.30 and 9,891.92

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Solution

The fourth proportional to 18,659.04, 27,980.30 and 9,891.92 is: 14,833.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659.04 : 27,980.30 = 9,891.92 : x
  2. Step 2: Convert to fraction form
    18,659.04/27,980.30 = 9,891.92/x
  3. Step 3: Cross multiply
    18,659.04x = 27,980.30 × 9,891.92
  4. Step 4: Simplify right side
    18,659.04x = 276,778,889.18
  5. Step 5: Solve for x
    x = 276,778,889.18/18,659.04
  6. Step 6: Final answer
    x = 14,833.50

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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.