Home / 9,880.31-13,636.10-6,105.30

Finding the Fourth Proportional to 9,880.31, 13,636.10 and 6,105.30

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Solution

The fourth proportional to 9,880.31, 13,636.10 and 6,105.30 is: 8,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.31 : 13,636.10 = 6,105.30 : x
  2. Step 2: Convert to fraction form
    9,880.31/13,636.10 = 6,105.30/x
  3. Step 3: Cross multiply
    9,880.31x = 13,636.10 × 6,105.30
  4. Step 4: Simplify right side
    9,880.31x = 83,252,450.80
  5. Step 5: Solve for x
    x = 83,252,450.80/9,880.31
  6. Step 6: Final answer
    x = 8,426.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.