Home / 12,039.84-18,028.17-9,259.92

Finding the Fourth Proportional to 12,039.84, 18,028.17 and 9,259.92

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Solution

The fourth proportional to 12,039.84, 18,028.17 and 9,259.92 is: 13,865.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,039.84 : 18,028.17 = 9,259.92 : x
  2. Step 2: Convert to fraction form
    12,039.84/18,028.17 = 9,259.92/x
  3. Step 3: Cross multiply
    12,039.84x = 18,028.17 × 9,259.92
  4. Step 4: Simplify right side
    12,039.84x = 166,939,411.95
  5. Step 5: Solve for x
    x = 166,939,411.95/12,039.84
  6. Step 6: Final answer
    x = 13,865.58

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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.