Home / 16,390.76-22,621.24-9,317.84

Finding the Fourth Proportional to 16,390.76, 22,621.24 and 9,317.84

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Solution

The fourth proportional to 16,390.76, 22,621.24 and 9,317.84 is: 12,859.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390.76 : 22,621.24 = 9,317.84 : x
  2. Step 2: Convert to fraction form
    16,390.76/22,621.24 = 9,317.84/x
  3. Step 3: Cross multiply
    16,390.76x = 22,621.24 × 9,317.84
  4. Step 4: Simplify right side
    16,390.76x = 210,781,094.92
  5. Step 5: Solve for x
    x = 210,781,094.92/16,390.76
  6. Step 6: Final answer
    x = 12,859.75

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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.