Home / 10,830.20-14,945.66-6,114.78

Finding the Fourth Proportional to 10,830.20, 14,945.66 and 6,114.78

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Solution

The fourth proportional to 10,830.20, 14,945.66 and 6,114.78 is: 8,438.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,830.20 : 14,945.66 = 6,114.78 : x
  2. Step 2: Convert to fraction form
    10,830.20/14,945.66 = 6,114.78/x
  3. Step 3: Cross multiply
    10,830.20x = 14,945.66 × 6,114.78
  4. Step 4: Simplify right side
    10,830.20x = 91,389,392.28
  5. Step 5: Solve for x
    x = 91,389,392.28/10,830.20
  6. Step 6: Final answer
    x = 8,438.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.