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Finding the Fourth Proportional to 8,886.40, 12,259.49 and 6,235.54

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Solution

The fourth proportional to 8,886.40, 12,259.49 and 6,235.54 is: 8,602.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.40 : 12,259.49 = 6,235.54 : x
  2. Step 2: Convert to fraction form
    8,886.40/12,259.49 = 6,235.54/x
  3. Step 3: Cross multiply
    8,886.40x = 12,259.49 × 6,235.54
  4. Step 4: Simplify right side
    8,886.40x = 76,444,478.45
  5. Step 5: Solve for x
    x = 76,444,478.45/8,886.40
  6. Step 6: Final answer
    x = 8,602.41

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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.