Home / 12,931.64-19,401.24-4,166.36

Finding the Fourth Proportional to 12,931.64, 19,401.24 and 4,166.36

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Solution

The fourth proportional to 12,931.64, 19,401.24 and 4,166.36 is: 6,250.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.64 : 19,401.24 = 4,166.36 : x
  2. Step 2: Convert to fraction form
    12,931.64/19,401.24 = 4,166.36/x
  3. Step 3: Cross multiply
    12,931.64x = 19,401.24 × 4,166.36
  4. Step 4: Simplify right side
    12,931.64x = 80,832,550.29
  5. Step 5: Solve for x
    x = 80,832,550.29/12,931.64
  6. Step 6: Final answer
    x = 6,250.76

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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.