Home / 16,288.56-22,480.63-10,320.78

Finding the Fourth Proportional to 16,288.56, 22,480.63 and 10,320.78

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Solution

The fourth proportional to 16,288.56, 22,480.63 and 10,320.78 is: 14,244.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,288.56 : 22,480.63 = 10,320.78 : x
  2. Step 2: Convert to fraction form
    16,288.56/22,480.63 = 10,320.78/x
  3. Step 3: Cross multiply
    16,288.56x = 22,480.63 × 10,320.78
  4. Step 4: Simplify right side
    16,288.56x = 232,017,694.99
  5. Step 5: Solve for x
    x = 232,017,694.99/16,288.56
  6. Step 6: Final answer
    x = 14,244.21

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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.