Home / 19,115.66-28,677.59-6,636.08

Finding the Fourth Proportional to 19,115.66, 28,677.59 and 6,636.08

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Solution

The fourth proportional to 19,115.66, 28,677.59 and 6,636.08 is: 9,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.66 : 28,677.59 = 6,636.08 : x
  2. Step 2: Convert to fraction form
    19,115.66/28,677.59 = 6,636.08/x
  3. Step 3: Cross multiply
    19,115.66x = 28,677.59 × 6,636.08
  4. Step 4: Simplify right side
    19,115.66x = 190,306,781.45
  5. Step 5: Solve for x
    x = 190,306,781.45/19,115.66
  6. Step 6: Final answer
    x = 9,955.54

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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.