Home / 13,338.20-20,010.12-4,570.76

Finding the Fourth Proportional to 13,338.20, 20,010.12 and 4,570.76

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Solution

The fourth proportional to 13,338.20, 20,010.12 and 4,570.76 is: 6,857.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.20 : 20,010.12 = 4,570.76 : x
  2. Step 2: Convert to fraction form
    13,338.20/20,010.12 = 4,570.76/x
  3. Step 3: Cross multiply
    13,338.20x = 20,010.12 × 4,570.76
  4. Step 4: Simplify right side
    13,338.20x = 91,461,456.09
  5. Step 5: Solve for x
    x = 91,461,456.09/13,338.20
  6. Step 6: Final answer
    x = 6,857.11

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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.