Home / 13,546.40-20,319.47-3,685.60

Finding the Fourth Proportional to 13,546.40, 20,319.47 and 3,685.60

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Solution

The fourth proportional to 13,546.40, 20,319.47 and 3,685.60 is: 5,528.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.40 : 20,319.47 = 3,685.60 : x
  2. Step 2: Convert to fraction form
    13,546.40/20,319.47 = 3,685.60/x
  3. Step 3: Cross multiply
    13,546.40x = 20,319.47 × 3,685.60
  4. Step 4: Simplify right side
    13,546.40x = 74,889,318.61
  5. Step 5: Solve for x
    x = 74,889,318.61/13,546.40
  6. Step 6: Final answer
    x = 5,528.36

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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.