Home / 10,399.03-15,598.31-4,479.85

Finding the Fourth Proportional to 10,399.03, 15,598.31 and 4,479.85

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Solution

The fourth proportional to 10,399.03, 15,598.31 and 4,479.85 is: 6,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.03 : 15,598.31 = 4,479.85 : x
  2. Step 2: Convert to fraction form
    10,399.03/15,598.31 = 4,479.85/x
  3. Step 3: Cross multiply
    10,399.03x = 15,598.31 × 4,479.85
  4. Step 4: Simplify right side
    10,399.03x = 69,878,027.66
  5. Step 5: Solve for x
    x = 69,878,027.66/10,399.03
  6. Step 6: Final answer
    x = 6,719.67

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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.