Home / 19,316.38-28,987.55-6,836.35

Finding the Fourth Proportional to 19,316.38, 28,987.55 and 6,836.35

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Solution

The fourth proportional to 19,316.38, 28,987.55 and 6,836.35 is: 10,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,316.38 : 28,987.55 = 6,836.35 : x
  2. Step 2: Convert to fraction form
    19,316.38/28,987.55 = 6,836.35/x
  3. Step 3: Cross multiply
    19,316.38x = 28,987.55 × 6,836.35
  4. Step 4: Simplify right side
    19,316.38x = 198,169,037.44
  5. Step 5: Solve for x
    x = 198,169,037.44/19,316.38
  6. Step 6: Final answer
    x = 10,259.12

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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.