Home / 14,868.38-20,518.65-8,153.61

Finding the Fourth Proportional to 14,868.38, 20,518.65 and 8,153.61

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Solution

The fourth proportional to 14,868.38, 20,518.65 and 8,153.61 is: 11,252.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,868.38 : 20,518.65 = 8,153.61 : x
  2. Step 2: Convert to fraction form
    14,868.38/20,518.65 = 8,153.61/x
  3. Step 3: Cross multiply
    14,868.38x = 20,518.65 × 8,153.61
  4. Step 4: Simplify right side
    14,868.38x = 167,300,992.88
  5. Step 5: Solve for x
    x = 167,300,992.88/14,868.38
  6. Step 6: Final answer
    x = 11,252.13

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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.