Home / 12,520.28-17,277.31-6,853.90

Finding the Fourth Proportional to 12,520.28, 17,277.31 and 6,853.90

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Solution

The fourth proportional to 12,520.28, 17,277.31 and 6,853.90 is: 9,458.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.28 : 17,277.31 = 6,853.90 : x
  2. Step 2: Convert to fraction form
    12,520.28/17,277.31 = 6,853.90/x
  3. Step 3: Cross multiply
    12,520.28x = 17,277.31 × 6,853.90
  4. Step 4: Simplify right side
    12,520.28x = 118,416,834.35
  5. Step 5: Solve for x
    x = 118,416,834.35/12,520.28
  6. Step 6: Final answer
    x = 9,458.00

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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.