Home / 7,116.08-10,661.16-6,960.56

Finding the Fourth Proportional to 7,116.08, 10,661.16 and 6,960.56

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Solution

The fourth proportional to 7,116.08, 10,661.16 and 6,960.56 is: 10,428.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.08 : 10,661.16 = 6,960.56 : x
  2. Step 2: Convert to fraction form
    7,116.08/10,661.16 = 6,960.56/x
  3. Step 3: Cross multiply
    7,116.08x = 10,661.16 × 6,960.56
  4. Step 4: Simplify right side
    7,116.08x = 74,207,643.85
  5. Step 5: Solve for x
    x = 74,207,643.85/7,116.08
  6. Step 6: Final answer
    x = 10,428.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.