Home / 13,246.20-18,260.10-9,703.80

Finding the Fourth Proportional to 13,246.20, 18,260.10 and 9,703.80

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Solution

The fourth proportional to 13,246.20, 18,260.10 and 9,703.80 is: 13,376.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.20 : 18,260.10 = 9,703.80 : x
  2. Step 2: Convert to fraction form
    13,246.20/18,260.10 = 9,703.80/x
  3. Step 3: Cross multiply
    13,246.20x = 18,260.10 × 9,703.80
  4. Step 4: Simplify right side
    13,246.20x = 177,192,358.38
  5. Step 5: Solve for x
    x = 177,192,358.38/13,246.20
  6. Step 6: Final answer
    x = 13,376.84

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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.