Home / 10,291.32-15,438.60-6,788.34

Finding the Fourth Proportional to 10,291.32, 15,438.60 and 6,788.34

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Solution

The fourth proportional to 10,291.32, 15,438.60 and 6,788.34 is: 10,183.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.32 : 15,438.60 = 6,788.34 : x
  2. Step 2: Convert to fraction form
    10,291.32/15,438.60 = 6,788.34/x
  3. Step 3: Cross multiply
    10,291.32x = 15,438.60 × 6,788.34
  4. Step 4: Simplify right side
    10,291.32x = 104,802,465.92
  5. Step 5: Solve for x
    x = 104,802,465.92/10,291.32
  6. Step 6: Final answer
    x = 10,183.58

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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.