Home / 13,385.44-18,465.13-8,353.52

Finding the Fourth Proportional to 13,385.44, 18,465.13 and 8,353.52

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Solution

The fourth proportional to 13,385.44, 18,465.13 and 8,353.52 is: 11,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.44 : 18,465.13 = 8,353.52 : x
  2. Step 2: Convert to fraction form
    13,385.44/18,465.13 = 8,353.52/x
  3. Step 3: Cross multiply
    13,385.44x = 18,465.13 × 8,353.52
  4. Step 4: Simplify right side
    13,385.44x = 154,248,832.76
  5. Step 5: Solve for x
    x = 154,248,832.76/13,385.44
  6. Step 6: Final answer
    x = 11,523.63

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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.