Home / 12,520.52-17,278.34-6,855.31

Finding the Fourth Proportional to 12,520.52, 17,278.34 and 6,855.31

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Solution

The fourth proportional to 12,520.52, 17,278.34 and 6,855.31 is: 9,460.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.52 : 17,278.34 = 6,855.31 : x
  2. Step 2: Convert to fraction form
    12,520.52/17,278.34 = 6,855.31/x
  3. Step 3: Cross multiply
    12,520.52x = 17,278.34 × 6,855.31
  4. Step 4: Simplify right side
    12,520.52x = 118,448,376.99
  5. Step 5: Solve for x
    x = 118,448,376.99/12,520.52
  6. Step 6: Final answer
    x = 9,460.34

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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.