Home / 13,459.43-20,187.61-3,599.51

Finding the Fourth Proportional to 13,459.43, 20,187.61 and 3,599.51

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Solution

The fourth proportional to 13,459.43, 20,187.61 and 3,599.51 is: 5,398.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.43 : 20,187.61 = 3,599.51 : x
  2. Step 2: Convert to fraction form
    13,459.43/20,187.61 = 3,599.51/x
  3. Step 3: Cross multiply
    13,459.43x = 20,187.61 × 3,599.51
  4. Step 4: Simplify right side
    13,459.43x = 72,665,394.13
  5. Step 5: Solve for x
    x = 72,665,394.13/13,459.43
  6. Step 6: Final answer
    x = 5,398.85

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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.