Home / 14,217.89-19,621.10-7,930.13

Finding the Fourth Proportional to 14,217.89, 19,621.10 and 7,930.13

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Solution

The fourth proportional to 14,217.89, 19,621.10 and 7,930.13 is: 10,943.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.89 : 19,621.10 = 7,930.13 : x
  2. Step 2: Convert to fraction form
    14,217.89/19,621.10 = 7,930.13/x
  3. Step 3: Cross multiply
    14,217.89x = 19,621.10 × 7,930.13
  4. Step 4: Simplify right side
    14,217.89x = 155,597,795.46
  5. Step 5: Solve for x
    x = 155,597,795.46/14,217.89
  6. Step 6: Final answer
    x = 10,943.81

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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.