Home / 13,429.17-20,144.16-6,409.94

Finding the Fourth Proportional to 13,429.17, 20,144.16 and 6,409.94

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Solution

The fourth proportional to 13,429.17, 20,144.16 and 6,409.94 is: 9,615.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.17 : 20,144.16 = 6,409.94 : x
  2. Step 2: Convert to fraction form
    13,429.17/20,144.16 = 6,409.94/x
  3. Step 3: Cross multiply
    13,429.17x = 20,144.16 × 6,409.94
  4. Step 4: Simplify right side
    13,429.17x = 129,122,756.23
  5. Step 5: Solve for x
    x = 129,122,756.23/13,429.17
  6. Step 6: Final answer
    x = 9,615.10

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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.