Home / 8,555.84-12,836.94-5,230.91

Finding the Fourth Proportional to 8,555.84, 12,836.94 and 5,230.91

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Solution

The fourth proportional to 8,555.84, 12,836.94 and 5,230.91 is: 7,848.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.84 : 12,836.94 = 5,230.91 : x
  2. Step 2: Convert to fraction form
    8,555.84/12,836.94 = 5,230.91/x
  3. Step 3: Cross multiply
    8,555.84x = 12,836.94 × 5,230.91
  4. Step 4: Simplify right side
    8,555.84x = 67,148,877.82
  5. Step 5: Solve for x
    x = 67,148,877.82/8,555.84
  6. Step 6: Final answer
    x = 7,848.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.