Home / 13,430.88-20,147.40-4,196.88

Finding the Fourth Proportional to 13,430.88, 20,147.40 and 4,196.88

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Solution

The fourth proportional to 13,430.88, 20,147.40 and 4,196.88 is: 6,295.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.88 : 20,147.40 = 4,196.88 : x
  2. Step 2: Convert to fraction form
    13,430.88/20,147.40 = 4,196.88/x
  3. Step 3: Cross multiply
    13,430.88x = 20,147.40 × 4,196.88
  4. Step 4: Simplify right side
    13,430.88x = 84,556,220.11
  5. Step 5: Solve for x
    x = 84,556,220.11/13,430.88
  6. Step 6: Final answer
    x = 6,295.66

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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.