Home / 10,997.32-15,164.66-7,018.60

Finding the Fourth Proportional to 10,997.32, 15,164.66 and 7,018.60

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Solution

The fourth proportional to 10,997.32, 15,164.66 and 7,018.60 is: 9,678.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,997.32 : 15,164.66 = 7,018.60 : x
  2. Step 2: Convert to fraction form
    10,997.32/15,164.66 = 7,018.60/x
  3. Step 3: Cross multiply
    10,997.32x = 15,164.66 × 7,018.60
  4. Step 4: Simplify right side
    10,997.32x = 106,434,682.68
  5. Step 5: Solve for x
    x = 106,434,682.68/10,997.32
  6. Step 6: Final answer
    x = 9,678.24

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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.