Home / 13,376.66-20,084.63-13,140.41

Finding the Fourth Proportional to 13,376.66, 20,084.63 and 13,140.41

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Solution

The fourth proportional to 13,376.66, 20,084.63 and 13,140.41 is: 19,729.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.66 : 20,084.63 = 13,140.41 : x
  2. Step 2: Convert to fraction form
    13,376.66/20,084.63 = 13,140.41/x
  3. Step 3: Cross multiply
    13,376.66x = 20,084.63 × 13,140.41
  4. Step 4: Simplify right side
    13,376.66x = 263,920,415.35
  5. Step 5: Solve for x
    x = 263,920,415.35/13,376.66
  6. Step 6: Final answer
    x = 19,729.92

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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.