Home / 10,644.70-15,957.21-5,439.10

Finding the Fourth Proportional to 10,644.70, 15,957.21 and 5,439.10

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Solution

The fourth proportional to 10,644.70, 15,957.21 and 5,439.10 is: 8,153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.70 : 15,957.21 = 5,439.10 : x
  2. Step 2: Convert to fraction form
    10,644.70/15,957.21 = 5,439.10/x
  3. Step 3: Cross multiply
    10,644.70x = 15,957.21 × 5,439.10
  4. Step 4: Simplify right side
    10,644.70x = 86,792,860.91
  5. Step 5: Solve for x
    x = 86,792,860.91/10,644.70
  6. Step 6: Final answer
    x = 8,153.62

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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.