Home / 10,917.36-15,061.68-6,718.32

Finding the Fourth Proportional to 10,917.36, 15,061.68 and 6,718.32

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Solution

The fourth proportional to 10,917.36, 15,061.68 and 6,718.32 is: 9,268.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.36 : 15,061.68 = 6,718.32 : x
  2. Step 2: Convert to fraction form
    10,917.36/15,061.68 = 6,718.32/x
  3. Step 3: Cross multiply
    10,917.36x = 15,061.68 × 6,718.32
  4. Step 4: Simplify right side
    10,917.36x = 101,189,185.98
  5. Step 5: Solve for x
    x = 101,189,185.98/10,917.36
  6. Step 6: Final answer
    x = 9,268.65

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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.