Home / 10,869.62-14,994.59-6,390.52

Finding the Fourth Proportional to 10,869.62, 14,994.59 and 6,390.52

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Solution

The fourth proportional to 10,869.62, 14,994.59 and 6,390.52 is: 8,815.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.62 : 14,994.59 = 6,390.52 : x
  2. Step 2: Convert to fraction form
    10,869.62/14,994.59 = 6,390.52/x
  3. Step 3: Cross multiply
    10,869.62x = 14,994.59 × 6,390.52
  4. Step 4: Simplify right side
    10,869.62x = 95,823,157.85
  5. Step 5: Solve for x
    x = 95,823,157.85/10,869.62
  6. Step 6: Final answer
    x = 8,815.69

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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.