Home / 13,447.04-20,152.10-6,859.38

Finding the Fourth Proportional to 13,447.04, 20,152.10 and 6,859.38

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Solution

The fourth proportional to 13,447.04, 20,152.10 and 6,859.38 is: 10,279.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.04 : 20,152.10 = 6,859.38 : x
  2. Step 2: Convert to fraction form
    13,447.04/20,152.10 = 6,859.38/x
  3. Step 3: Cross multiply
    13,447.04x = 20,152.10 × 6,859.38
  4. Step 4: Simplify right side
    13,447.04x = 138,230,911.70
  5. Step 5: Solve for x
    x = 138,230,911.70/13,447.04
  6. Step 6: Final answer
    x = 10,279.65

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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.