Home / 13,872.62-19,143.25-8,762.18

Finding the Fourth Proportional to 13,872.62, 19,143.25 and 8,762.18

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Solution

The fourth proportional to 13,872.62, 19,143.25 and 8,762.18 is: 12,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.62 : 19,143.25 = 8,762.18 : x
  2. Step 2: Convert to fraction form
    13,872.62/19,143.25 = 8,762.18/x
  3. Step 3: Cross multiply
    13,872.62x = 19,143.25 × 8,762.18
  4. Step 4: Simplify right side
    13,872.62x = 167,736,641.63
  5. Step 5: Solve for x
    x = 167,736,641.63/13,872.62
  6. Step 6: Final answer
    x = 12,091.20

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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.