Home / 12,641.36-18,964.29-4,322.30

Finding the Fourth Proportional to 12,641.36, 18,964.29 and 4,322.30

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Solution

The fourth proportional to 12,641.36, 18,964.29 and 4,322.30 is: 6,484.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,641.36 : 18,964.29 = 4,322.30 : x
  2. Step 2: Convert to fraction form
    12,641.36/18,964.29 = 4,322.30/x
  3. Step 3: Cross multiply
    12,641.36x = 18,964.29 × 4,322.30
  4. Step 4: Simplify right side
    12,641.36x = 81,969,350.67
  5. Step 5: Solve for x
    x = 81,969,350.67/12,641.36
  6. Step 6: Final answer
    x = 6,484.22

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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.