Home / 14,218.61-19,622.67-7,930.99

Finding the Fourth Proportional to 14,218.61, 19,622.67 and 7,930.99

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Solution

The fourth proportional to 14,218.61, 19,622.67 and 7,930.99 is: 10,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.61 : 19,622.67 = 7,930.99 : x
  2. Step 2: Convert to fraction form
    14,218.61/19,622.67 = 7,930.99/x
  3. Step 3: Cross multiply
    14,218.61x = 19,622.67 × 7,930.99
  4. Step 4: Simplify right side
    14,218.61x = 155,627,199.54
  5. Step 5: Solve for x
    x = 155,627,199.54/14,218.61
  6. Step 6: Final answer
    x = 10,945.32

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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.