Home / 13,433.52-20,152.88-5,112.90

Finding the Fourth Proportional to 13,433.52, 20,152.88 and 5,112.90

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Solution

The fourth proportional to 13,433.52, 20,152.88 and 5,112.90 is: 7,670.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,433.52 : 20,152.88 = 5,112.90 : x
  2. Step 2: Convert to fraction form
    13,433.52/20,152.88 = 5,112.90/x
  3. Step 3: Cross multiply
    13,433.52x = 20,152.88 × 5,112.90
  4. Step 4: Simplify right side
    13,433.52x = 103,039,559.39
  5. Step 5: Solve for x
    x = 103,039,559.39/13,433.52
  6. Step 6: Final answer
    x = 7,670.33

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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.