Home / 14,153.54-21,237.59-7,909.65

Finding the Fourth Proportional to 14,153.54, 21,237.59 and 7,909.65

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Solution

The fourth proportional to 14,153.54, 21,237.59 and 7,909.65 is: 11,868.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,153.54 : 21,237.59 = 7,909.65 : x
  2. Step 2: Convert to fraction form
    14,153.54/21,237.59 = 7,909.65/x
  3. Step 3: Cross multiply
    14,153.54x = 21,237.59 × 7,909.65
  4. Step 4: Simplify right side
    14,153.54x = 167,981,923.52
  5. Step 5: Solve for x
    x = 167,981,923.52/14,153.54
  6. Step 6: Final answer
    x = 11,868.55

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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.