Home / 14,279.74-21,424.73-6,381.60

Finding the Fourth Proportional to 14,279.74, 21,424.73 and 6,381.60

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Solution

The fourth proportional to 14,279.74, 21,424.73 and 6,381.60 is: 9,574.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.74 : 21,424.73 = 6,381.60 : x
  2. Step 2: Convert to fraction form
    14,279.74/21,424.73 = 6,381.60/x
  3. Step 3: Cross multiply
    14,279.74x = 21,424.73 × 6,381.60
  4. Step 4: Simplify right side
    14,279.74x = 136,724,056.97
  5. Step 5: Solve for x
    x = 136,724,056.97/14,279.74
  6. Step 6: Final answer
    x = 9,574.69

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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.