Home / 14,288.80-19,717.85-7,914.96

Finding the Fourth Proportional to 14,288.80, 19,717.85 and 7,914.96

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Solution

The fourth proportional to 14,288.80, 19,717.85 and 7,914.96 is: 10,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,288.80 : 19,717.85 = 7,914.96 : x
  2. Step 2: Convert to fraction form
    14,288.80/19,717.85 = 7,914.96/x
  3. Step 3: Cross multiply
    14,288.80x = 19,717.85 × 7,914.96
  4. Step 4: Simplify right side
    14,288.80x = 156,065,994.04
  5. Step 5: Solve for x
    x = 156,065,994.04/14,288.80
  6. Step 6: Final answer
    x = 10,922.26

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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.