Home / 12,731.43-19,090.95-4,411.92

Finding the Fourth Proportional to 12,731.43, 19,090.95 and 4,411.92

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Solution

The fourth proportional to 12,731.43, 19,090.95 and 4,411.92 is: 6,615.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.43 : 19,090.95 = 4,411.92 : x
  2. Step 2: Convert to fraction form
    12,731.43/19,090.95 = 4,411.92/x
  3. Step 3: Cross multiply
    12,731.43x = 19,090.95 × 4,411.92
  4. Step 4: Simplify right side
    12,731.43x = 84,227,744.12
  5. Step 5: Solve for x
    x = 84,227,744.12/12,731.43
  6. Step 6: Final answer
    x = 6,615.73

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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.