Home / 8,281.48-12,427.78-3,087.34

Finding the Fourth Proportional to 8,281.48, 12,427.78 and 3,087.34

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Solution

The fourth proportional to 8,281.48, 12,427.78 and 3,087.34 is: 4,633.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.48 : 12,427.78 = 3,087.34 : x
  2. Step 2: Convert to fraction form
    8,281.48/12,427.78 = 3,087.34/x
  3. Step 3: Cross multiply
    8,281.48x = 12,427.78 × 3,087.34
  4. Step 4: Simplify right side
    8,281.48x = 38,368,782.31
  5. Step 5: Solve for x
    x = 38,368,782.31/8,281.48
  6. Step 6: Final answer
    x = 4,633.08

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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.