Home / 8,559.19-12,839.15-2,715.67

Finding the Fourth Proportional to 8,559.19, 12,839.15 and 2,715.67

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Solution

The fourth proportional to 8,559.19, 12,839.15 and 2,715.67 is: 4,073.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.19 : 12,839.15 = 2,715.67 : x
  2. Step 2: Convert to fraction form
    8,559.19/12,839.15 = 2,715.67/x
  3. Step 3: Cross multiply
    8,559.19x = 12,839.15 × 2,715.67
  4. Step 4: Simplify right side
    8,559.19x = 34,866,894.48
  5. Step 5: Solve for x
    x = 34,866,894.48/8,559.19
  6. Step 6: Final answer
    x = 4,073.62

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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.