Home / 13,902.06-20,856.38-4,542.07

Finding the Fourth Proportional to 13,902.06, 20,856.38 and 4,542.07

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Solution

The fourth proportional to 13,902.06, 20,856.38 and 4,542.07 is: 6,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,902.06 : 20,856.38 = 4,542.07 : x
  2. Step 2: Convert to fraction form
    13,902.06/20,856.38 = 4,542.07/x
  3. Step 3: Cross multiply
    13,902.06x = 20,856.38 × 4,542.07
  4. Step 4: Simplify right side
    13,902.06x = 94,731,137.91
  5. Step 5: Solve for x
    x = 94,731,137.91/13,902.06
  6. Step 6: Final answer
    x = 6,814.18

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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.