Home / 13,394.45-18,484.78-7,426.68

Finding the Fourth Proportional to 13,394.45, 18,484.78 and 7,426.68

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Solution

The fourth proportional to 13,394.45, 18,484.78 and 7,426.68 is: 10,249.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.45 : 18,484.78 = 7,426.68 : x
  2. Step 2: Convert to fraction form
    13,394.45/18,484.78 = 7,426.68/x
  3. Step 3: Cross multiply
    13,394.45x = 18,484.78 × 7,426.68
  4. Step 4: Simplify right side
    13,394.45x = 137,280,453.51
  5. Step 5: Solve for x
    x = 137,280,453.51/13,394.45
  6. Step 6: Final answer
    x = 10,249.05

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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.