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Finding the Fourth Proportional to 15,073, 20,800.99 and 8,358.91

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Solution

The fourth proportional to 15,073, 20,800.99 and 8,358.91 is: 11,535.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,073 : 20,800.99 = 8,358.91 : x
  2. Step 2: Convert to fraction form
    15,073/20,800.99 = 8,358.91/x
  3. Step 3: Cross multiply
    15,073x = 20,800.99 × 8,358.91
  4. Step 4: Simplify right side
    15,073x = 173,873,603.32
  5. Step 5: Solve for x
    x = 173,873,603.32/15,073
  6. Step 6: Final answer
    x = 11,535.43

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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.