Home / 8,691.51-13,038.62-2,846.78

Finding the Fourth Proportional to 8,691.51, 13,038.62 and 2,846.78

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Solution

The fourth proportional to 8,691.51, 13,038.62 and 2,846.78 is: 4,270.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.51 : 13,038.62 = 2,846.78 : x
  2. Step 2: Convert to fraction form
    8,691.51/13,038.62 = 2,846.78/x
  3. Step 3: Cross multiply
    8,691.51x = 13,038.62 × 2,846.78
  4. Step 4: Simplify right side
    8,691.51x = 37,118,082.64
  5. Step 5: Solve for x
    x = 37,118,082.64/8,691.51
  6. Step 6: Final answer
    x = 4,270.61

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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.