Home / 10,439.46-15,665.27-3,870.23

Finding the Fourth Proportional to 10,439.46, 15,665.27 and 3,870.23

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Solution

The fourth proportional to 10,439.46, 15,665.27 and 3,870.23 is: 5,807.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.46 : 15,665.27 = 3,870.23 : x
  2. Step 2: Convert to fraction form
    10,439.46/15,665.27 = 3,870.23/x
  3. Step 3: Cross multiply
    10,439.46x = 15,665.27 × 3,870.23
  4. Step 4: Simplify right side
    10,439.46x = 60,628,100.23
  5. Step 5: Solve for x
    x = 60,628,100.23/10,439.46
  6. Step 6: Final answer
    x = 5,807.59

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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.