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Finding the Fourth Proportional to 15,069.02, 20,797.40 and 8,356.14

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Solution

The fourth proportional to 15,069.02, 20,797.40 and 8,356.14 is: 11,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,069.02 : 20,797.40 = 8,356.14 : x
  2. Step 2: Convert to fraction form
    15,069.02/20,797.40 = 8,356.14/x
  3. Step 3: Cross multiply
    15,069.02x = 20,797.40 × 8,356.14
  4. Step 4: Simplify right side
    15,069.02x = 173,785,986.04
  5. Step 5: Solve for x
    x = 173,785,986.04/15,069.02
  6. Step 6: Final answer
    x = 11,532.67

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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.