Home / 13,430.05-20,145.07-4,196.05

Finding the Fourth Proportional to 13,430.05, 20,145.07 and 4,196.05

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Solution

The fourth proportional to 13,430.05, 20,145.07 and 4,196.05 is: 6,294.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.05 : 20,145.07 = 4,196.05 : x
  2. Step 2: Convert to fraction form
    13,430.05/20,145.07 = 4,196.05/x
  3. Step 3: Cross multiply
    13,430.05x = 20,145.07 × 4,196.05
  4. Step 4: Simplify right side
    13,430.05x = 84,529,620.25
  5. Step 5: Solve for x
    x = 84,529,620.25/13,430.05
  6. Step 6: Final answer
    x = 6,294.07

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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.