Home / 14,191.47-21,279.92-7,623.18

Finding the Fourth Proportional to 14,191.47, 21,279.92 and 7,623.18

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Solution

The fourth proportional to 14,191.47, 21,279.92 and 7,623.18 is: 11,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.47 : 21,279.92 = 7,623.18 : x
  2. Step 2: Convert to fraction form
    14,191.47/21,279.92 = 7,623.18/x
  3. Step 3: Cross multiply
    14,191.47x = 21,279.92 × 7,623.18
  4. Step 4: Simplify right side
    14,191.47x = 162,220,622.43
  5. Step 5: Solve for x
    x = 162,220,622.43/14,191.47
  6. Step 6: Final answer
    x = 11,430.85

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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.