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Finding the Fourth Proportional to 8,880.79, 13,327.13 and 3,686.67

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Solution

The fourth proportional to 8,880.79, 13,327.13 and 3,686.67 is: 5,532.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.79 : 13,327.13 = 3,686.67 : x
  2. Step 2: Convert to fraction form
    8,880.79/13,327.13 = 3,686.67/x
  3. Step 3: Cross multiply
    8,880.79x = 13,327.13 × 3,686.67
  4. Step 4: Simplify right side
    8,880.79x = 49,132,730.36
  5. Step 5: Solve for x
    x = 49,132,730.36/8,880.79
  6. Step 6: Final answer
    x = 5,532.47

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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.