Home / 13,112.55-19,670.76-4,224.90

Finding the Fourth Proportional to 13,112.55, 19,670.76 and 4,224.90

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Solution

The fourth proportional to 13,112.55, 19,670.76 and 4,224.90 is: 6,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.55 : 19,670.76 = 4,224.90 : x
  2. Step 2: Convert to fraction form
    13,112.55/19,670.76 = 4,224.90/x
  3. Step 3: Cross multiply
    13,112.55x = 19,670.76 × 4,224.90
  4. Step 4: Simplify right side
    13,112.55x = 83,106,944.75
  5. Step 5: Solve for x
    x = 83,106,944.75/13,112.55
  6. Step 6: Final answer
    x = 6,337.97

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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.