Home / 10,131.60-15,200.64-4,289.76

Finding the Fourth Proportional to 10,131.60, 15,200.64 and 4,289.76

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Solution

The fourth proportional to 10,131.60, 15,200.64 and 4,289.76 is: 6,436.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.60 : 15,200.64 = 4,289.76 : x
  2. Step 2: Convert to fraction form
    10,131.60/15,200.64 = 4,289.76/x
  3. Step 3: Cross multiply
    10,131.60x = 15,200.64 × 4,289.76
  4. Step 4: Simplify right side
    10,131.60x = 65,207,097.45
  5. Step 5: Solve for x
    x = 65,207,097.45/10,131.60
  6. Step 6: Final answer
    x = 6,436.01

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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.