Home / 13,394.54-18,484.38-7,426.21

Finding the Fourth Proportional to 13,394.54, 18,484.38 and 7,426.21

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Solution

The fourth proportional to 13,394.54, 18,484.38 and 7,426.21 is: 10,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.54 : 18,484.38 = 7,426.21 : x
  2. Step 2: Convert to fraction form
    13,394.54/18,484.38 = 7,426.21/x
  3. Step 3: Cross multiply
    13,394.54x = 18,484.38 × 7,426.21
  4. Step 4: Simplify right side
    13,394.54x = 137,268,887.60
  5. Step 5: Solve for x
    x = 137,268,887.60/13,394.54
  6. Step 6: Final answer
    x = 10,248.12

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Double scale
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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.