Home / 12,723.21-19,032.98-10,649.61

Finding the Fourth Proportional to 12,723.21, 19,032.98 and 10,649.61

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Solution

The fourth proportional to 12,723.21, 19,032.98 and 10,649.61 is: 15,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,723.21 : 19,032.98 = 10,649.61 : x
  2. Step 2: Convert to fraction form
    12,723.21/19,032.98 = 10,649.61/x
  3. Step 3: Cross multiply
    12,723.21x = 19,032.98 × 10,649.61
  4. Step 4: Simplify right side
    12,723.21x = 202,693,760.89
  5. Step 5: Solve for x
    x = 202,693,760.89/12,723.21
  6. Step 6: Final answer
    x = 15,931.02

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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.