Home / 12,904.28-19,343.35-8,744.71

Finding the Fourth Proportional to 12,904.28, 19,343.35 and 8,744.71

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Solution

The fourth proportional to 12,904.28, 19,343.35 and 8,744.71 is: 13,108.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.28 : 19,343.35 = 8,744.71 : x
  2. Step 2: Convert to fraction form
    12,904.28/19,343.35 = 8,744.71/x
  3. Step 3: Cross multiply
    12,904.28x = 19,343.35 × 8,744.71
  4. Step 4: Simplify right side
    12,904.28x = 169,151,978.87
  5. Step 5: Solve for x
    x = 169,151,978.87/12,904.28
  6. Step 6: Final answer
    x = 13,108.21

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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.