Home / 7,972.66-11,004.72-5,140.04

Finding the Fourth Proportional to 7,972.66, 11,004.72 and 5,140.04

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Solution

The fourth proportional to 7,972.66, 11,004.72 and 5,140.04 is: 7,094.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.66 : 11,004.72 = 5,140.04 : x
  2. Step 2: Convert to fraction form
    7,972.66/11,004.72 = 5,140.04/x
  3. Step 3: Cross multiply
    7,972.66x = 11,004.72 × 5,140.04
  4. Step 4: Simplify right side
    7,972.66x = 56,564,700.99
  5. Step 5: Solve for x
    x = 56,564,700.99/7,972.66
  6. Step 6: Final answer
    x = 7,094.83

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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.