Home / 10,977.30-16,465.95-3,079.80

Finding the Fourth Proportional to 10,977.30, 16,465.95 and 3,079.80

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Solution

The fourth proportional to 10,977.30, 16,465.95 and 3,079.80 is: 4,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.30 : 16,465.95 = 3,079.80 : x
  2. Step 2: Convert to fraction form
    10,977.30/16,465.95 = 3,079.80/x
  3. Step 3: Cross multiply
    10,977.30x = 16,465.95 × 3,079.80
  4. Step 4: Simplify right side
    10,977.30x = 50,711,832.81
  5. Step 5: Solve for x
    x = 50,711,832.81/10,977.30
  6. Step 6: Final answer
    x = 4,619.70

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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.