Home / 8,515.04-12,777.50-3,584.36

Finding the Fourth Proportional to 8,515.04, 12,777.50 and 3,584.36

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Solution

The fourth proportional to 8,515.04, 12,777.50 and 3,584.36 is: 5,378.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.04 : 12,777.50 = 3,584.36 : x
  2. Step 2: Convert to fraction form
    8,515.04/12,777.50 = 3,584.36/x
  3. Step 3: Cross multiply
    8,515.04x = 12,777.50 × 3,584.36
  4. Step 4: Simplify right side
    8,515.04x = 45,799,159.90
  5. Step 5: Solve for x
    x = 45,799,159.90/8,515.04
  6. Step 6: Final answer
    x = 5,378.62

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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.