Home / 8,187.31-12,282.45-4,681.27

Finding the Fourth Proportional to 8,187.31, 12,282.45 and 4,681.27

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Solution

The fourth proportional to 8,187.31, 12,282.45 and 4,681.27 is: 7,022.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.31 : 12,282.45 = 4,681.27 : x
  2. Step 2: Convert to fraction form
    8,187.31/12,282.45 = 4,681.27/x
  3. Step 3: Cross multiply
    8,187.31x = 12,282.45 × 4,681.27
  4. Step 4: Simplify right side
    8,187.31x = 57,497,416.45
  5. Step 5: Solve for x
    x = 57,497,416.45/8,187.31
  6. Step 6: Final answer
    x = 7,022.75

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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.