Home / 10,977.12-16,460.96-3,478.95

Finding the Fourth Proportional to 10,977.12, 16,460.96 and 3,478.95

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Solution

The fourth proportional to 10,977.12, 16,460.96 and 3,478.95 is: 5,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.12 : 16,460.96 = 3,478.95 : x
  2. Step 2: Convert to fraction form
    10,977.12/16,460.96 = 3,478.95/x
  3. Step 3: Cross multiply
    10,977.12x = 16,460.96 × 3,478.95
  4. Step 4: Simplify right side
    10,977.12x = 57,266,839.40
  5. Step 5: Solve for x
    x = 57,266,839.40/10,977.12
  6. Step 6: Final answer
    x = 5,216.93

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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.