Home / 13,353.60-18,430.20-8,049.24

Finding the Fourth Proportional to 13,353.60, 18,430.20 and 8,049.24

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Solution

The fourth proportional to 13,353.60, 18,430.20 and 8,049.24 is: 11,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.60 : 18,430.20 = 8,049.24 : x
  2. Step 2: Convert to fraction form
    13,353.60/18,430.20 = 8,049.24/x
  3. Step 3: Cross multiply
    13,353.60x = 18,430.20 × 8,049.24
  4. Step 4: Simplify right side
    13,353.60x = 148,349,103.05
  5. Step 5: Solve for x
    x = 148,349,103.05/13,353.60
  6. Step 6: Final answer
    x = 11,109.30

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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.