Home / 14,218.09-19,620.91-7,930.46

Finding the Fourth Proportional to 14,218.09, 19,620.91 and 7,930.46

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Solution

The fourth proportional to 14,218.09, 19,620.91 and 7,930.46 is: 10,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.09 : 19,620.91 = 7,930.46 : x
  2. Step 2: Convert to fraction form
    14,218.09/19,620.91 = 7,930.46/x
  3. Step 3: Cross multiply
    14,218.09x = 19,620.91 × 7,930.46
  4. Step 4: Simplify right side
    14,218.09x = 155,602,841.92
  5. Step 5: Solve for x
    x = 155,602,841.92/14,218.09
  6. Step 6: Final answer
    x = 10,944.00

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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.