Home / 19,217.16-28,830.24-8,124.84

Finding the Fourth Proportional to 19,217.16, 28,830.24 and 8,124.84

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Solution

The fourth proportional to 19,217.16, 28,830.24 and 8,124.84 is: 12,189.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.16 : 28,830.24 = 8,124.84 : x
  2. Step 2: Convert to fraction form
    19,217.16/28,830.24 = 8,124.84/x
  3. Step 3: Cross multiply
    19,217.16x = 28,830.24 × 8,124.84
  4. Step 4: Simplify right side
    19,217.16x = 234,241,087.16
  5. Step 5: Solve for x
    x = 234,241,087.16/19,217.16
  6. Step 6: Final answer
    x = 12,189.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.