Home / 7,971.80-11,000.79-4,434.93

Finding the Fourth Proportional to 7,971.80, 11,000.79 and 4,434.93

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Solution

The fourth proportional to 7,971.80, 11,000.79 and 4,434.93 is: 6,120.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.80 : 11,000.79 = 4,434.93 : x
  2. Step 2: Convert to fraction form
    7,971.80/11,000.79 = 4,434.93/x
  3. Step 3: Cross multiply
    7,971.80x = 11,000.79 × 4,434.93
  4. Step 4: Simplify right side
    7,971.80x = 48,787,733.59
  5. Step 5: Solve for x
    x = 48,787,733.59/7,971.80
  6. Step 6: Final answer
    x = 6,120.04

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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.