Home / 13,287.90-19,906.32-7,426.74

Finding the Fourth Proportional to 13,287.90, 19,906.32 and 7,426.74

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Solution

The fourth proportional to 13,287.90, 19,906.32 and 7,426.74 is: 11,125.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.90 : 19,906.32 = 7,426.74 : x
  2. Step 2: Convert to fraction form
    13,287.90/19,906.32 = 7,426.74/x
  3. Step 3: Cross multiply
    13,287.90x = 19,906.32 × 7,426.74
  4. Step 4: Simplify right side
    13,287.90x = 147,839,063.00
  5. Step 5: Solve for x
    x = 147,839,063.00/13,287.90
  6. Step 6: Final answer
    x = 11,125.84

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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.