Home / 13,394.91-18,485.09-7,426.68

Finding the Fourth Proportional to 13,394.91, 18,485.09 and 7,426.68

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Solution

The fourth proportional to 13,394.91, 18,485.09 and 7,426.68 is: 10,248.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.91 : 18,485.09 = 7,426.68 : x
  2. Step 2: Convert to fraction form
    13,394.91/18,485.09 = 7,426.68/x
  3. Step 3: Cross multiply
    13,394.91x = 18,485.09 × 7,426.68
  4. Step 4: Simplify right side
    13,394.91x = 137,282,811.07
  5. Step 5: Solve for x
    x = 137,282,811.07/13,394.91
  6. Step 6: Final answer
    x = 10,248.88

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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.