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Finding the Fourth Proportional to 8,880.85, 13,298.56 and 8,618.07

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Solution

The fourth proportional to 8,880.85, 13,298.56 and 8,618.07 is: 12,905.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.85 : 13,298.56 = 8,618.07 : x
  2. Step 2: Convert to fraction form
    8,880.85/13,298.56 = 8,618.07/x
  3. Step 3: Cross multiply
    8,880.85x = 13,298.56 × 8,618.07
  4. Step 4: Simplify right side
    8,880.85x = 114,607,899.43
  5. Step 5: Solve for x
    x = 114,607,899.43/8,880.85
  6. Step 6: Final answer
    x = 12,905.06

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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.