Home / 13,430.11-20,145.17-4,196.11

Finding the Fourth Proportional to 13,430.11, 20,145.17 and 4,196.11

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Solution

The fourth proportional to 13,430.11, 20,145.17 and 4,196.11 is: 6,294.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.11 : 20,145.17 = 4,196.11 : x
  2. Step 2: Convert to fraction form
    13,430.11/20,145.17 = 4,196.11/x
  3. Step 3: Cross multiply
    13,430.11x = 20,145.17 × 4,196.11
  4. Step 4: Simplify right side
    13,430.11x = 84,531,353.49
  5. Step 5: Solve for x
    x = 84,531,353.49/13,430.11
  6. Step 6: Final answer
    x = 6,294.17

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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.