Home / 8,685.50-11,995.89-5,886.14

Finding the Fourth Proportional to 8,685.50, 11,995.89 and 5,886.14

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Solution

The fourth proportional to 8,685.50, 11,995.89 and 5,886.14 is: 8,129.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,685.50 : 11,995.89 = 5,886.14 : x
  2. Step 2: Convert to fraction form
    8,685.50/11,995.89 = 5,886.14/x
  3. Step 3: Cross multiply
    8,685.50x = 11,995.89 × 5,886.14
  4. Step 4: Simplify right side
    8,685.50x = 70,609,487.96
  5. Step 5: Solve for x
    x = 70,609,487.96/8,685.50
  6. Step 6: Final answer
    x = 8,129.58

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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.