Home / 13,459.32-20,190.32-5,146.33

Finding the Fourth Proportional to 13,459.32, 20,190.32 and 5,146.33

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Solution

The fourth proportional to 13,459.32, 20,190.32 and 5,146.33 is: 7,720.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.32 : 20,190.32 = 5,146.33 : x
  2. Step 2: Convert to fraction form
    13,459.32/20,190.32 = 5,146.33/x
  3. Step 3: Cross multiply
    13,459.32x = 20,190.32 × 5,146.33
  4. Step 4: Simplify right side
    13,459.32x = 103,906,011.92
  5. Step 5: Solve for x
    x = 103,906,011.92/13,459.32
  6. Step 6: Final answer
    x = 7,720.00

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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.