Home / 14,279.70-21,424.67-6,381.56

Finding the Fourth Proportional to 14,279.70, 21,424.67 and 6,381.56

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Solution

The fourth proportional to 14,279.70, 21,424.67 and 6,381.56 is: 9,574.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.70 : 21,424.67 = 6,381.56 : x
  2. Step 2: Convert to fraction form
    14,279.70/21,424.67 = 6,381.56/x
  3. Step 3: Cross multiply
    14,279.70x = 21,424.67 × 6,381.56
  4. Step 4: Simplify right side
    14,279.70x = 136,722,725.92
  5. Step 5: Solve for x
    x = 136,722,725.92/14,279.70
  6. Step 6: Final answer
    x = 9,574.62

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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.