Home / 14,244.86-19,658.21-7,871.46

Finding the Fourth Proportional to 14,244.86, 19,658.21 and 7,871.46

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Solution

The fourth proportional to 14,244.86, 19,658.21 and 7,871.46 is: 10,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,244.86 : 19,658.21 = 7,871.46 : x
  2. Step 2: Convert to fraction form
    14,244.86/19,658.21 = 7,871.46/x
  3. Step 3: Cross multiply
    14,244.86x = 19,658.21 × 7,871.46
  4. Step 4: Simplify right side
    14,244.86x = 154,738,813.69
  5. Step 5: Solve for x
    x = 154,738,813.69/14,244.86
  6. Step 6: Final answer
    x = 10,862.78

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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.