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Finding the Fourth Proportional to 8,886.73, 12,259.80 and 5,109.03

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Solution

The fourth proportional to 8,886.73, 12,259.80 and 5,109.03 is: 7,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.73 : 12,259.80 = 5,109.03 : x
  2. Step 2: Convert to fraction form
    8,886.73/12,259.80 = 5,109.03/x
  3. Step 3: Cross multiply
    8,886.73x = 12,259.80 × 5,109.03
  4. Step 4: Simplify right side
    8,886.73x = 62,635,685.99
  5. Step 5: Solve for x
    x = 62,635,685.99/8,886.73
  6. Step 6: Final answer
    x = 7,048.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.