Home / 9,908.20-14,862.30-8,813.80

Finding the Fourth Proportional to 9,908.20, 14,862.30 and 8,813.80

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Solution

The fourth proportional to 9,908.20, 14,862.30 and 8,813.80 is: 13,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.20 : 14,862.30 = 8,813.80 : x
  2. Step 2: Convert to fraction form
    9,908.20/14,862.30 = 8,813.80/x
  3. Step 3: Cross multiply
    9,908.20x = 14,862.30 × 8,813.80
  4. Step 4: Simplify right side
    9,908.20x = 130,993,339.74
  5. Step 5: Solve for x
    x = 130,993,339.74/9,908.20
  6. Step 6: Final answer
    x = 13,220.70

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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.