Home / 11,918.88-16,456.23-7,444.80

Finding the Fourth Proportional to 11,918.88, 16,456.23 and 7,444.80

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Solution

The fourth proportional to 11,918.88, 16,456.23 and 7,444.80 is: 10,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.88 : 16,456.23 = 7,444.80 : x
  2. Step 2: Convert to fraction form
    11,918.88/16,456.23 = 7,444.80/x
  3. Step 3: Cross multiply
    11,918.88x = 16,456.23 × 7,444.80
  4. Step 4: Simplify right side
    11,918.88x = 122,513,341.10
  5. Step 5: Solve for x
    x = 122,513,341.10/11,918.88
  6. Step 6: Final answer
    x = 10,278.93

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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.