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Finding the Fourth Proportional to 10,880.70, 15,022.58 and 8,358.30

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Solution

The fourth proportional to 10,880.70, 15,022.58 and 8,358.30 is: 11,540.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,880.70 : 15,022.58 = 8,358.30 : x
  2. Step 2: Convert to fraction form
    10,880.70/15,022.58 = 8,358.30/x
  3. Step 3: Cross multiply
    10,880.70x = 15,022.58 × 8,358.30
  4. Step 4: Simplify right side
    10,880.70x = 125,563,230.41
  5. Step 5: Solve for x
    x = 125,563,230.41/10,880.70
  6. Step 6: Final answer
    x = 11,540.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.