Home / 11,113.73-15,342.53-8,590.14

Finding the Fourth Proportional to 11,113.73, 15,342.53 and 8,590.14

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Solution

The fourth proportional to 11,113.73, 15,342.53 and 8,590.14 is: 11,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.73 : 15,342.53 = 8,590.14 : x
  2. Step 2: Convert to fraction form
    11,113.73/15,342.53 = 8,590.14/x
  3. Step 3: Cross multiply
    11,113.73x = 15,342.53 × 8,590.14
  4. Step 4: Simplify right side
    11,113.73x = 131,794,439.43
  5. Step 5: Solve for x
    x = 131,794,439.43/11,113.73
  6. Step 6: Final answer
    x = 11,858.70

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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.