Home / 10,011.76-15,018.44-3,438.32

Finding the Fourth Proportional to 10,011.76, 15,018.44 and 3,438.32

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Solution

The fourth proportional to 10,011.76, 15,018.44 and 3,438.32 is: 5,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.76 : 15,018.44 = 3,438.32 : x
  2. Step 2: Convert to fraction form
    10,011.76/15,018.44 = 3,438.32/x
  3. Step 3: Cross multiply
    10,011.76x = 15,018.44 × 3,438.32
  4. Step 4: Simplify right side
    10,011.76x = 51,638,202.62
  5. Step 5: Solve for x
    x = 51,638,202.62/10,011.76
  6. Step 6: Final answer
    x = 5,157.75

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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.