Home / 14,218.13-19,621.62-7,930.50

Finding the Fourth Proportional to 14,218.13, 19,621.62 and 7,930.50

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Solution

The fourth proportional to 14,218.13, 19,621.62 and 7,930.50 is: 10,944.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.13 : 19,621.62 = 7,930.50 : x
  2. Step 2: Convert to fraction form
    14,218.13/19,621.62 = 7,930.50/x
  3. Step 3: Cross multiply
    14,218.13x = 19,621.62 × 7,930.50
  4. Step 4: Simplify right side
    14,218.13x = 155,609,257.41
  5. Step 5: Solve for x
    x = 155,609,257.41/14,218.13
  6. Step 6: Final answer
    x = 10,944.43

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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.