Home / 18,153.10-27,221.45-5,670.11

Finding the Fourth Proportional to 18,153.10, 27,221.45 and 5,670.11

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Solution

The fourth proportional to 18,153.10, 27,221.45 and 5,670.11 is: 8,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.10 : 27,221.45 = 5,670.11 : x
  2. Step 2: Convert to fraction form
    18,153.10/27,221.45 = 5,670.11/x
  3. Step 3: Cross multiply
    18,153.10x = 27,221.45 × 5,670.11
  4. Step 4: Simplify right side
    18,153.10x = 154,348,615.86
  5. Step 5: Solve for x
    x = 154,348,615.86/18,153.10
  6. Step 6: Final answer
    x = 8,502.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.