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Finding the Fourth Proportional to 8,886.84, 13,343.96 and 7,518.16

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Solution

The fourth proportional to 8,886.84, 13,343.96 and 7,518.16 is: 11,288.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.84 : 13,343.96 = 7,518.16 : x
  2. Step 2: Convert to fraction form
    8,886.84/13,343.96 = 7,518.16/x
  3. Step 3: Cross multiply
    8,886.84x = 13,343.96 × 7,518.16
  4. Step 4: Simplify right side
    8,886.84x = 100,322,026.31
  5. Step 5: Solve for x
    x = 100,322,026.31/8,886.84
  6. Step 6: Final answer
    x = 11,288.83

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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.