Home / 13,394.93-18,485.15-7,426.71

Finding the Fourth Proportional to 13,394.93, 18,485.15 and 7,426.71

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Solution

The fourth proportional to 13,394.93, 18,485.15 and 7,426.71 is: 10,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.93 : 18,485.15 = 7,426.71 : x
  2. Step 2: Convert to fraction form
    13,394.93/18,485.15 = 7,426.71/x
  3. Step 3: Cross multiply
    13,394.93x = 18,485.15 × 7,426.71
  4. Step 4: Simplify right side
    13,394.93x = 137,283,811.22
  5. Step 5: Solve for x
    x = 137,283,811.22/13,394.93
  6. Step 6: Final answer
    x = 10,248.94

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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.