Home / 18,780.03-28,197.72-10,476.27

Finding the Fourth Proportional to 18,780.03, 28,197.72 and 10,476.27

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Solution

The fourth proportional to 18,780.03, 28,197.72 and 10,476.27 is: 15,729.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.03 : 28,197.72 = 10,476.27 : x
  2. Step 2: Convert to fraction form
    18,780.03/28,197.72 = 10,476.27/x
  3. Step 3: Cross multiply
    18,780.03x = 28,197.72 × 10,476.27
  4. Step 4: Simplify right side
    18,780.03x = 295,406,928.10
  5. Step 5: Solve for x
    x = 295,406,928.10/18,780.03
  6. Step 6: Final answer
    x = 15,729.84

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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.