Home / 12,890.67-19,343.46-6,967.59

Finding the Fourth Proportional to 12,890.67, 19,343.46 and 6,967.59

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Solution

The fourth proportional to 12,890.67, 19,343.46 and 6,967.59 is: 10,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.67 : 19,343.46 = 6,967.59 : x
  2. Step 2: Convert to fraction form
    12,890.67/19,343.46 = 6,967.59/x
  3. Step 3: Cross multiply
    12,890.67x = 19,343.46 × 6,967.59
  4. Step 4: Simplify right side
    12,890.67x = 134,777,298.46
  5. Step 5: Solve for x
    x = 134,777,298.46/12,890.67
  6. Step 6: Final answer
    x = 10,455.41

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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.