Home / 14,042.42-21,065.91-5,278.04

Finding the Fourth Proportional to 14,042.42, 21,065.91 and 5,278.04

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Solution

The fourth proportional to 14,042.42, 21,065.91 and 5,278.04 is: 7,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.42 : 21,065.91 = 5,278.04 : x
  2. Step 2: Convert to fraction form
    14,042.42/21,065.91 = 5,278.04/x
  3. Step 3: Cross multiply
    14,042.42x = 21,065.91 × 5,278.04
  4. Step 4: Simplify right side
    14,042.42x = 111,186,715.62
  5. Step 5: Solve for x
    x = 111,186,715.62/14,042.42
  6. Step 6: Final answer
    x = 7,917.92

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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.