Home / 13,615.05-20,404.89-6,113.07

Finding the Fourth Proportional to 13,615.05, 20,404.89 and 6,113.07

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Solution

The fourth proportional to 13,615.05, 20,404.89 and 6,113.07 is: 9,161.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,615.05 : 20,404.89 = 6,113.07 : x
  2. Step 2: Convert to fraction form
    13,615.05/20,404.89 = 6,113.07/x
  3. Step 3: Cross multiply
    13,615.05x = 20,404.89 × 6,113.07
  4. Step 4: Simplify right side
    13,615.05x = 124,736,520.91
  5. Step 5: Solve for x
    x = 124,736,520.91/13,615.05
  6. Step 6: Final answer
    x = 9,161.66

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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.