Home / 13,353.92-18,426.84-7,385.62

Finding the Fourth Proportional to 13,353.92, 18,426.84 and 7,385.62

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Solution

The fourth proportional to 13,353.92, 18,426.84 and 7,385.62 is: 10,191.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.92 : 18,426.84 = 7,385.62 : x
  2. Step 2: Convert to fraction form
    13,353.92/18,426.84 = 7,385.62/x
  3. Step 3: Cross multiply
    13,353.92x = 18,426.84 × 7,385.62
  4. Step 4: Simplify right side
    13,353.92x = 136,093,638.04
  5. Step 5: Solve for x
    x = 136,093,638.04/13,353.92
  6. Step 6: Final answer
    x = 10,191.29

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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.