Home / 9,666.98-13,341.49-5,418.73

Finding the Fourth Proportional to 9,666.98, 13,341.49 and 5,418.73

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Solution

The fourth proportional to 9,666.98, 13,341.49 and 5,418.73 is: 7,478.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,666.98 : 13,341.49 = 5,418.73 : x
  2. Step 2: Convert to fraction form
    9,666.98/13,341.49 = 5,418.73/x
  3. Step 3: Cross multiply
    9,666.98x = 13,341.49 × 5,418.73
  4. Step 4: Simplify right side
    9,666.98x = 72,293,865.40
  5. Step 5: Solve for x
    x = 72,293,865.40/9,666.98
  6. Step 6: Final answer
    x = 7,478.44

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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.