Home / 12,867.98-17,756.36-7,201.94

Finding the Fourth Proportional to 12,867.98, 17,756.36 and 7,201.94

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Solution

The fourth proportional to 12,867.98, 17,756.36 and 7,201.94 is: 9,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867.98 : 17,756.36 = 7,201.94 : x
  2. Step 2: Convert to fraction form
    12,867.98/17,756.36 = 7,201.94/x
  3. Step 3: Cross multiply
    12,867.98x = 17,756.36 × 7,201.94
  4. Step 4: Simplify right side
    12,867.98x = 127,880,114.55
  5. Step 5: Solve for x
    x = 127,880,114.55/12,867.98
  6. Step 6: Final answer
    x = 9,937.86

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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.