Home / 12,506.40-17,257.86-7,200.90

Finding the Fourth Proportional to 12,506.40, 17,257.86 and 7,200.90

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Solution

The fourth proportional to 12,506.40, 17,257.86 and 7,200.90 is: 9,936.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.40 : 17,257.86 = 7,200.90 : x
  2. Step 2: Convert to fraction form
    12,506.40/17,257.86 = 7,200.90/x
  3. Step 3: Cross multiply
    12,506.40x = 17,257.86 × 7,200.90
  4. Step 4: Simplify right side
    12,506.40x = 124,272,124.07
  5. Step 5: Solve for x
    x = 124,272,124.07/12,506.40
  6. Step 6: Final answer
    x = 9,936.68

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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.