Home / 8,865.89-12,146.21-8,533.52

Finding the Fourth Proportional to 8,865.89, 12,146.21 and 8,533.52

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Solution

The fourth proportional to 8,865.89, 12,146.21 and 8,533.52 is: 11,690.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.89 : 12,146.21 = 8,533.52 : x
  2. Step 2: Convert to fraction form
    8,865.89/12,146.21 = 8,533.52/x
  3. Step 3: Cross multiply
    8,865.89x = 12,146.21 × 8,533.52
  4. Step 4: Simplify right side
    8,865.89x = 103,649,886.56
  5. Step 5: Solve for x
    x = 103,649,886.56/8,865.89
  6. Step 6: Final answer
    x = 11,690.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.