Home / 12,961.57-19,426.64-5,931.73

Finding the Fourth Proportional to 12,961.57, 19,426.64 and 5,931.73

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Solution

The fourth proportional to 12,961.57, 19,426.64 and 5,931.73 is: 8,890.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.57 : 19,426.64 = 5,931.73 : x
  2. Step 2: Convert to fraction form
    12,961.57/19,426.64 = 5,931.73/x
  3. Step 3: Cross multiply
    12,961.57x = 19,426.64 × 5,931.73
  4. Step 4: Simplify right side
    12,961.57x = 115,233,577.91
  5. Step 5: Solve for x
    x = 115,233,577.91/12,961.57
  6. Step 6: Final answer
    x = 8,890.40

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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.