Home / 8,561.98-11,815.49-4,785.14

Finding the Fourth Proportional to 8,561.98, 11,815.49 and 4,785.14

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Solution

The fourth proportional to 8,561.98, 11,815.49 and 4,785.14 is: 6,603.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.98 : 11,815.49 = 4,785.14 : x
  2. Step 2: Convert to fraction form
    8,561.98/11,815.49 = 4,785.14/x
  3. Step 3: Cross multiply
    8,561.98x = 11,815.49 × 4,785.14
  4. Step 4: Simplify right side
    8,561.98x = 56,538,744.10
  5. Step 5: Solve for x
    x = 56,538,744.10/8,561.98
  6. Step 6: Final answer
    x = 6,603.47

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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.