Home / 10,639.08-15,959.75-4,399.56

Finding the Fourth Proportional to 10,639.08, 15,959.75 and 4,399.56

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Solution

The fourth proportional to 10,639.08, 15,959.75 and 4,399.56 is: 6,599.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,639.08 : 15,959.75 = 4,399.56 : x
  2. Step 2: Convert to fraction form
    10,639.08/15,959.75 = 4,399.56/x
  3. Step 3: Cross multiply
    10,639.08x = 15,959.75 × 4,399.56
  4. Step 4: Simplify right side
    10,639.08x = 70,215,855.71
  5. Step 5: Solve for x
    x = 70,215,855.71/10,639.08
  6. Step 6: Final answer
    x = 6,599.81

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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.