Home / 7,111.38-10,666.57-2,668.13

Finding the Fourth Proportional to 7,111.38, 10,666.57 and 2,668.13

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Solution

The fourth proportional to 7,111.38, 10,666.57 and 2,668.13 is: 4,002.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,111.38 : 10,666.57 = 2,668.13 : x
  2. Step 2: Convert to fraction form
    7,111.38/10,666.57 = 2,668.13/x
  3. Step 3: Cross multiply
    7,111.38x = 10,666.57 × 2,668.13
  4. Step 4: Simplify right side
    7,111.38x = 28,459,795.41
  5. Step 5: Solve for x
    x = 28,459,795.41/7,111.38
  6. Step 6: Final answer
    x = 4,002.01

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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.