Home / 16,390.46-22,618.18-9,678.25

Finding the Fourth Proportional to 16,390.46, 22,618.18 and 9,678.25

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Solution

The fourth proportional to 16,390.46, 22,618.18 and 9,678.25 is: 13,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390.46 : 22,618.18 = 9,678.25 : x
  2. Step 2: Convert to fraction form
    16,390.46/22,618.18 = 9,678.25/x
  3. Step 3: Cross multiply
    16,390.46x = 22,618.18 × 9,678.25
  4. Step 4: Simplify right side
    16,390.46x = 218,904,440.96
  5. Step 5: Solve for x
    x = 218,904,440.96/16,390.46
  6. Step 6: Final answer
    x = 13,355.60

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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.