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Finding the Fourth Proportional to 9,188.61, 13,783.65 and 2,862.71

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Solution

The fourth proportional to 9,188.61, 13,783.65 and 2,862.71 is: 4,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.61 : 13,783.65 = 2,862.71 : x
  2. Step 2: Convert to fraction form
    9,188.61/13,783.65 = 2,862.71/x
  3. Step 3: Cross multiply
    9,188.61x = 13,783.65 × 2,862.71
  4. Step 4: Simplify right side
    9,188.61x = 39,458,578.38
  5. Step 5: Solve for x
    x = 39,458,578.38/9,188.61
  6. Step 6: Final answer
    x = 4,294.29

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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.