Home / 14,279.46-19,705.66-7,991.84

Finding the Fourth Proportional to 14,279.46, 19,705.66 and 7,991.84

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Solution

The fourth proportional to 14,279.46, 19,705.66 and 7,991.84 is: 11,028.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.46 : 19,705.66 = 7,991.84 : x
  2. Step 2: Convert to fraction form
    14,279.46/19,705.66 = 7,991.84/x
  3. Step 3: Cross multiply
    14,279.46x = 19,705.66 × 7,991.84
  4. Step 4: Simplify right side
    14,279.46x = 157,484,437.20
  5. Step 5: Solve for x
    x = 157,484,437.20/14,279.46
  6. Step 6: Final answer
    x = 11,028.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.