Home / 10,787.18-16,179.89-4,943.84

Finding the Fourth Proportional to 10,787.18, 16,179.89 and 4,943.84

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Solution

The fourth proportional to 10,787.18, 16,179.89 and 4,943.84 is: 7,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.18 : 16,179.89 = 4,943.84 : x
  2. Step 2: Convert to fraction form
    10,787.18/16,179.89 = 4,943.84/x
  3. Step 3: Cross multiply
    10,787.18x = 16,179.89 × 4,943.84
  4. Step 4: Simplify right side
    10,787.18x = 79,990,681.76
  5. Step 5: Solve for x
    x = 79,990,681.76/10,787.18
  6. Step 6: Final answer
    x = 7,415.35

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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.