Home / 9,101.31-12,560.21-5,122.68

Finding the Fourth Proportional to 9,101.31, 12,560.21 and 5,122.68

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Solution

The fourth proportional to 9,101.31, 12,560.21 and 5,122.68 is: 7,069.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,101.31 : 12,560.21 = 5,122.68 : x
  2. Step 2: Convert to fraction form
    9,101.31/12,560.21 = 5,122.68/x
  3. Step 3: Cross multiply
    9,101.31x = 12,560.21 × 5,122.68
  4. Step 4: Simplify right side
    9,101.31x = 64,341,936.56
  5. Step 5: Solve for x
    x = 64,341,936.56/9,101.31
  6. Step 6: Final answer
    x = 7,069.52

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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.