Home / 8,815.05-12,166.72-6,897.08

Finding the Fourth Proportional to 8,815.05, 12,166.72 and 6,897.08

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Solution

The fourth proportional to 8,815.05, 12,166.72 and 6,897.08 is: 9,519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.05 : 12,166.72 = 6,897.08 : x
  2. Step 2: Convert to fraction form
    8,815.05/12,166.72 = 6,897.08/x
  3. Step 3: Cross multiply
    8,815.05x = 12,166.72 × 6,897.08
  4. Step 4: Simplify right side
    8,815.05x = 83,914,841.18
  5. Step 5: Solve for x
    x = 83,914,841.18/8,815.05
  6. Step 6: Final answer
    x = 9,519.50

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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.