Home / 14,371.20-19,828.10-8,320.95

Finding the Fourth Proportional to 14,371.20, 19,828.10 and 8,320.95

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Solution

The fourth proportional to 14,371.20, 19,828.10 and 8,320.95 is: 11,480.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,371.20 : 19,828.10 = 8,320.95 : x
  2. Step 2: Convert to fraction form
    14,371.20/19,828.10 = 8,320.95/x
  3. Step 3: Cross multiply
    14,371.20x = 19,828.10 × 8,320.95
  4. Step 4: Simplify right side
    14,371.20x = 164,988,649.50
  5. Step 5: Solve for x
    x = 164,988,649.50/14,371.20
  6. Step 6: Final answer
    x = 11,480.51

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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.