Home / 13,152.64-19,690.68-6,897.82

Finding the Fourth Proportional to 13,152.64, 19,690.68 and 6,897.82

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Solution

The fourth proportional to 13,152.64, 19,690.68 and 6,897.82 is: 10,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.64 : 19,690.68 = 6,897.82 : x
  2. Step 2: Convert to fraction form
    13,152.64/19,690.68 = 6,897.82/x
  3. Step 3: Cross multiply
    13,152.64x = 19,690.68 × 6,897.82
  4. Step 4: Simplify right side
    13,152.64x = 135,822,766.32
  5. Step 5: Solve for x
    x = 135,822,766.32/13,152.64
  6. Step 6: Final answer
    x = 10,326.65

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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.