Home / 10,015.32-15,012.70-5,069.96

Finding the Fourth Proportional to 10,015.32, 15,012.70 and 5,069.96

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Solution

The fourth proportional to 10,015.32, 15,012.70 and 5,069.96 is: 7,599.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.32 : 15,012.70 = 5,069.96 : x
  2. Step 2: Convert to fraction form
    10,015.32/15,012.70 = 5,069.96/x
  3. Step 3: Cross multiply
    10,015.32x = 15,012.70 × 5,069.96
  4. Step 4: Simplify right side
    10,015.32x = 76,113,788.49
  5. Step 5: Solve for x
    x = 76,113,788.49/10,015.32
  6. Step 6: Final answer
    x = 7,599.74

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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.