Home / 14,121.65-21,182.61-4,261.01

Finding the Fourth Proportional to 14,121.65, 21,182.61 and 4,261.01

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Solution

The fourth proportional to 14,121.65, 21,182.61 and 4,261.01 is: 6,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.65 : 21,182.61 = 4,261.01 : x
  2. Step 2: Convert to fraction form
    14,121.65/21,182.61 = 4,261.01/x
  3. Step 3: Cross multiply
    14,121.65x = 21,182.61 × 4,261.01
  4. Step 4: Simplify right side
    14,121.65x = 90,259,207.12
  5. Step 5: Solve for x
    x = 90,259,207.12/14,121.65
  6. Step 6: Final answer
    x = 6,391.55

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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.