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Finding the Fourth Proportional to 8,889.66, 13,335.26 and 2,315.86

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Solution

The fourth proportional to 8,889.66, 13,335.26 and 2,315.86 is: 3,473.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.66 : 13,335.26 = 2,315.86 : x
  2. Step 2: Convert to fraction form
    8,889.66/13,335.26 = 2,315.86/x
  3. Step 3: Cross multiply
    8,889.66x = 13,335.26 × 2,315.86
  4. Step 4: Simplify right side
    8,889.66x = 30,882,595.22
  5. Step 5: Solve for x
    x = 30,882,595.22/8,889.66
  6. Step 6: Final answer
    x = 3,473.99

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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.