Home / 12,816.96-19,223.52-10,639.68

Finding the Fourth Proportional to 12,816.96, 19,223.52 and 10,639.68

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Solution

The fourth proportional to 12,816.96, 19,223.52 and 10,639.68 is: 15,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.96 : 19,223.52 = 10,639.68 : x
  2. Step 2: Convert to fraction form
    12,816.96/19,223.52 = 10,639.68/x
  3. Step 3: Cross multiply
    12,816.96x = 19,223.52 × 10,639.68
  4. Step 4: Simplify right side
    12,816.96x = 204,532,101.27
  5. Step 5: Solve for x
    x = 204,532,101.27/12,816.96
  6. Step 6: Final answer
    x = 15,957.93

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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.