Home / 12,931.17-19,396.75-4,167.37

Finding the Fourth Proportional to 12,931.17, 19,396.75 and 4,167.37

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Solution

The fourth proportional to 12,931.17, 19,396.75 and 4,167.37 is: 6,251.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.17 : 19,396.75 = 4,167.37 : x
  2. Step 2: Convert to fraction form
    12,931.17/19,396.75 = 4,167.37/x
  3. Step 3: Cross multiply
    12,931.17x = 19,396.75 × 4,167.37
  4. Step 4: Simplify right side
    12,931.17x = 80,833,434.05
  5. Step 5: Solve for x
    x = 80,833,434.05/12,931.17
  6. Step 6: Final answer
    x = 6,251.05

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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.