Home / 10,208.53-15,298.52-5,518.43

Finding the Fourth Proportional to 10,208.53, 15,298.52 and 5,518.43

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Solution

The fourth proportional to 10,208.53, 15,298.52 and 5,518.43 is: 8,269.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.53 : 15,298.52 = 5,518.43 : x
  2. Step 2: Convert to fraction form
    10,208.53/15,298.52 = 5,518.43/x
  3. Step 3: Cross multiply
    10,208.53x = 15,298.52 × 5,518.43
  4. Step 4: Simplify right side
    10,208.53x = 84,423,811.72
  5. Step 5: Solve for x
    x = 84,423,811.72/10,208.53
  6. Step 6: Final answer
    x = 8,269.93

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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.