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Finding the Fourth Proportional to 10,533.63, 15,797.28 and 8,680.15

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Solution

The fourth proportional to 10,533.63, 15,797.28 and 8,680.15 is: 13,017.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,533.63 : 15,797.28 = 8,680.15 : x
  2. Step 2: Convert to fraction form
    10,533.63/15,797.28 = 8,680.15/x
  3. Step 3: Cross multiply
    10,533.63x = 15,797.28 × 8,680.15
  4. Step 4: Simplify right side
    10,533.63x = 137,122,759.99
  5. Step 5: Solve for x
    x = 137,122,759.99/10,533.63
  6. Step 6: Final answer
    x = 13,017.62

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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.