Home / 18,900.04-28,350.26-7,799.08

Finding the Fourth Proportional to 18,900.04, 28,350.26 and 7,799.08

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Solution

The fourth proportional to 18,900.04, 28,350.26 and 7,799.08 is: 11,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.04 : 28,350.26 = 7,799.08 : x
  2. Step 2: Convert to fraction form
    18,900.04/28,350.26 = 7,799.08/x
  3. Step 3: Cross multiply
    18,900.04x = 28,350.26 × 7,799.08
  4. Step 4: Simplify right side
    18,900.04x = 221,105,945.76
  5. Step 5: Solve for x
    x = 221,105,945.76/18,900.04
  6. Step 6: Final answer
    x = 11,698.70

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Double scale
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Similar ratio
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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.