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Finding the Fourth Proportional to 10,865.66, 16,282.08 and 8,079.26

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Solution

The fourth proportional to 10,865.66, 16,282.08 and 8,079.26 is: 12,106.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,865.66 : 16,282.08 = 8,079.26 : x
  2. Step 2: Convert to fraction form
    10,865.66/16,282.08 = 8,079.26/x
  3. Step 3: Cross multiply
    10,865.66x = 16,282.08 × 8,079.26
  4. Step 4: Simplify right side
    10,865.66x = 131,547,157.66
  5. Step 5: Solve for x
    x = 131,547,157.66/10,865.66
  6. Step 6: Final answer
    x = 12,106.69

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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.