Home / 13,420.81-20,098.27-11,066.41

Finding the Fourth Proportional to 13,420.81, 20,098.27 and 11,066.41

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Solution

The fourth proportional to 13,420.81, 20,098.27 and 11,066.41 is: 16,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420.81 : 20,098.27 = 11,066.41 : x
  2. Step 2: Convert to fraction form
    13,420.81/20,098.27 = 11,066.41/x
  3. Step 3: Cross multiply
    13,420.81x = 20,098.27 × 11,066.41
  4. Step 4: Simplify right side
    13,420.81x = 222,415,696.11
  5. Step 5: Solve for x
    x = 222,415,696.11/13,420.81
  6. Step 6: Final answer
    x = 16,572.45

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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.