Home / 12,869.66-19,311.11-9,748.63

Finding the Fourth Proportional to 12,869.66, 19,311.11 and 9,748.63

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Solution

The fourth proportional to 12,869.66, 19,311.11 and 9,748.63 is: 14,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.66 : 19,311.11 = 9,748.63 : x
  2. Step 2: Convert to fraction form
    12,869.66/19,311.11 = 9,748.63/x
  3. Step 3: Cross multiply
    12,869.66x = 19,311.11 × 9,748.63
  4. Step 4: Simplify right side
    12,869.66x = 188,256,769.26
  5. Step 5: Solve for x
    x = 188,256,769.26/12,869.66
  6. Step 6: Final answer
    x = 14,627.95

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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.