Home / 7,971.21-11,000.28-4,434.63

Finding the Fourth Proportional to 7,971.21, 11,000.28 and 4,434.63

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Solution

The fourth proportional to 7,971.21, 11,000.28 and 4,434.63 is: 6,119.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.21 : 11,000.28 = 4,434.63 : x
  2. Step 2: Convert to fraction form
    7,971.21/11,000.28 = 4,434.63/x
  3. Step 3: Cross multiply
    7,971.21x = 11,000.28 × 4,434.63
  4. Step 4: Simplify right side
    7,971.21x = 48,782,171.70
  5. Step 5: Solve for x
    x = 48,782,171.70/7,971.21
  6. Step 6: Final answer
    x = 6,119.80

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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.