Home / 7,111.29-10,666.99-4,661.62

Finding the Fourth Proportional to 7,111.29, 10,666.99 and 4,661.62

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Solution

The fourth proportional to 7,111.29, 10,666.99 and 4,661.62 is: 6,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.29 : 10,666.99 = 4,661.62 : x
  2. Step 2: Convert to fraction form
    7,111.29/10,666.99 = 4,661.62/x
  3. Step 3: Cross multiply
    7,111.29x = 10,666.99 × 4,661.62
  4. Step 4: Simplify right side
    7,111.29x = 49,725,453.92
  5. Step 5: Solve for x
    x = 49,725,453.92/7,111.29
  6. Step 6: Final answer
    x = 6,992.47

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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.