Home / 8,561.98-11,815.17-5,376.94

Finding the Fourth Proportional to 8,561.98, 11,815.17 and 5,376.94

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Solution

The fourth proportional to 8,561.98, 11,815.17 and 5,376.94 is: 7,419.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.98 : 11,815.17 = 5,376.94 : x
  2. Step 2: Convert to fraction form
    8,561.98/11,815.17 = 5,376.94/x
  3. Step 3: Cross multiply
    8,561.98x = 11,815.17 × 5,376.94
  4. Step 4: Simplify right side
    8,561.98x = 63,529,460.18
  5. Step 5: Solve for x
    x = 63,529,460.18/8,561.98
  6. Step 6: Final answer
    x = 7,419.95

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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.