Home / 18,881.94-28,316.70-6,398.76

Finding the Fourth Proportional to 18,881.94, 28,316.70 and 6,398.76

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Solution

The fourth proportional to 18,881.94, 28,316.70 and 6,398.76 is: 9,596.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.94 : 28,316.70 = 6,398.76 : x
  2. Step 2: Convert to fraction form
    18,881.94/28,316.70 = 6,398.76/x
  3. Step 3: Cross multiply
    18,881.94x = 28,316.70 × 6,398.76
  4. Step 4: Simplify right side
    18,881.94x = 181,191,767.29
  5. Step 5: Solve for x
    x = 181,191,767.29/18,881.94
  6. Step 6: Final answer
    x = 9,596.04

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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.