Home / 12,315.84-18,476.68-3,995.87

Finding the Fourth Proportional to 12,315.84, 18,476.68 and 3,995.87

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Solution

The fourth proportional to 12,315.84, 18,476.68 and 3,995.87 is: 5,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.84 : 18,476.68 = 3,995.87 : x
  2. Step 2: Convert to fraction form
    12,315.84/18,476.68 = 3,995.87/x
  3. Step 3: Cross multiply
    12,315.84x = 18,476.68 × 3,995.87
  4. Step 4: Simplify right side
    12,315.84x = 73,830,411.31
  5. Step 5: Solve for x
    x = 73,830,411.31/12,315.84
  6. Step 6: Final answer
    x = 5,994.75

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Similar ratio
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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.