Home / 8,639.04-12,950.88-3,370.40

Finding the Fourth Proportional to 8,639.04, 12,950.88 and 3,370.40

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Solution

The fourth proportional to 8,639.04, 12,950.88 and 3,370.40 is: 5,052.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.04 : 12,950.88 = 3,370.40 : x
  2. Step 2: Convert to fraction form
    8,639.04/12,950.88 = 3,370.40/x
  3. Step 3: Cross multiply
    8,639.04x = 12,950.88 × 3,370.40
  4. Step 4: Simplify right side
    8,639.04x = 43,649,645.95
  5. Step 5: Solve for x
    x = 43,649,645.95/8,639.04
  6. Step 6: Final answer
    x = 5,052.60

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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.