Home / 14,311.07-19,750.47-7,939.73

Finding the Fourth Proportional to 14,311.07, 19,750.47 and 7,939.73

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Solution

The fourth proportional to 14,311.07, 19,750.47 and 7,939.73 is: 10,957.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.07 : 19,750.47 = 7,939.73 : x
  2. Step 2: Convert to fraction form
    14,311.07/19,750.47 = 7,939.73/x
  3. Step 3: Cross multiply
    14,311.07x = 19,750.47 × 7,939.73
  4. Step 4: Simplify right side
    14,311.07x = 156,813,300.42
  5. Step 5: Solve for x
    x = 156,813,300.42/14,311.07
  6. Step 6: Final answer
    x = 10,957.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.