Home / 18,670.90-25,756.76-11,951.14

Finding the Fourth Proportional to 18,670.90, 25,756.76 and 11,951.14

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Solution

The fourth proportional to 18,670.90, 25,756.76 and 11,951.14 is: 16,486.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.90 : 25,756.76 = 11,951.14 : x
  2. Step 2: Convert to fraction form
    18,670.90/25,756.76 = 11,951.14/x
  3. Step 3: Cross multiply
    18,670.90x = 25,756.76 × 11,951.14
  4. Step 4: Simplify right side
    18,670.90x = 307,822,644.71
  5. Step 5: Solve for x
    x = 307,822,644.71/18,670.90
  6. Step 6: Final answer
    x = 16,486.76

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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.