Home / 9,116.80-13,675.20-2,877.30

Finding the Fourth Proportional to 9,116.80, 13,675.20 and 2,877.30

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Solution

The fourth proportional to 9,116.80, 13,675.20 and 2,877.30 is: 4,315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,116.80 : 13,675.20 = 2,877.30 : x
  2. Step 2: Convert to fraction form
    9,116.80/13,675.20 = 2,877.30/x
  3. Step 3: Cross multiply
    9,116.80x = 13,675.20 × 2,877.30
  4. Step 4: Simplify right side
    9,116.80x = 39,347,632.71
  5. Step 5: Solve for x
    x = 39,347,632.71/9,116.80
  6. Step 6: Final answer
    x = 4,315.95

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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.