Home / 16,388.25-22,617.73-9,315.74

Finding the Fourth Proportional to 16,388.25, 22,617.73 and 9,315.74

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Solution

The fourth proportional to 16,388.25, 22,617.73 and 9,315.74 is: 12,856.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,388.25 : 22,617.73 = 9,315.74 : x
  2. Step 2: Convert to fraction form
    16,388.25/22,617.73 = 9,315.74/x
  3. Step 3: Cross multiply
    16,388.25x = 22,617.73 × 9,315.74
  4. Step 4: Simplify right side
    16,388.25x = 210,700,732.40
  5. Step 5: Solve for x
    x = 210,700,732.40/16,388.25
  6. Step 6: Final answer
    x = 12,856.82

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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.