Home / 10,239.84-15,359.04-3,998.68

Finding the Fourth Proportional to 10,239.84, 15,359.04 and 3,998.68

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Solution

The fourth proportional to 10,239.84, 15,359.04 and 3,998.68 is: 5,997.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.84 : 15,359.04 = 3,998.68 : x
  2. Step 2: Convert to fraction form
    10,239.84/15,359.04 = 3,998.68/x
  3. Step 3: Cross multiply
    10,239.84x = 15,359.04 × 3,998.68
  4. Step 4: Simplify right side
    10,239.84x = 61,415,886.07
  5. Step 5: Solve for x
    x = 61,415,886.07/10,239.84
  6. Step 6: Final answer
    x = 5,997.74

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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.