Home / 12,767.95-17,619.46-7,102.45

Finding the Fourth Proportional to 12,767.95, 17,619.46 and 7,102.45

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Solution

The fourth proportional to 12,767.95, 17,619.46 and 7,102.45 is: 9,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,767.95 : 17,619.46 = 7,102.45 : x
  2. Step 2: Convert to fraction form
    12,767.95/17,619.46 = 7,102.45/x
  3. Step 3: Cross multiply
    12,767.95x = 17,619.46 × 7,102.45
  4. Step 4: Simplify right side
    12,767.95x = 125,141,333.68
  5. Step 5: Solve for x
    x = 125,141,333.68/12,767.95
  6. Step 6: Final answer
    x = 9,801.21

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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.