Home / 13,394.40-18,484.08-7,426.04

Finding the Fourth Proportional to 13,394.40, 18,484.08 and 7,426.04

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Solution

The fourth proportional to 13,394.40, 18,484.08 and 7,426.04 is: 10,247.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.40 : 18,484.08 = 7,426.04 : x
  2. Step 2: Convert to fraction form
    13,394.40/18,484.08 = 7,426.04/x
  3. Step 3: Cross multiply
    13,394.40x = 18,484.08 × 7,426.04
  4. Step 4: Simplify right side
    13,394.40x = 137,263,517.44
  5. Step 5: Solve for x
    x = 137,263,517.44/13,394.40
  6. Step 6: Final answer
    x = 10,247.83

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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.