Home / 18,748.28-25,877.76-11,670.50

Finding the Fourth Proportional to 18,748.28, 25,877.76 and 11,670.50

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Solution

The fourth proportional to 18,748.28, 25,877.76 and 11,670.50 is: 16,108.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.28 : 25,877.76 = 11,670.50 : x
  2. Step 2: Convert to fraction form
    18,748.28/25,877.76 = 11,670.50/x
  3. Step 3: Cross multiply
    18,748.28x = 25,877.76 × 11,670.50
  4. Step 4: Simplify right side
    18,748.28x = 302,006,398.08
  5. Step 5: Solve for x
    x = 302,006,398.08/18,748.28
  6. Step 6: Final answer
    x = 16,108.49

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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.