Home / 7,971.28-11,000.10-4,434.64

Finding the Fourth Proportional to 7,971.28, 11,000.10 and 4,434.64

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Solution

The fourth proportional to 7,971.28, 11,000.10 and 4,434.64 is: 6,119.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,971.28 : 11,000.10 = 4,434.64 : x
  2. Step 2: Convert to fraction form
    7,971.28/11,000.10 = 4,434.64/x
  3. Step 3: Cross multiply
    7,971.28x = 11,000.10 × 4,434.64
  4. Step 4: Simplify right side
    7,971.28x = 48,781,483.46
  5. Step 5: Solve for x
    x = 48,781,483.46/7,971.28
  6. Step 6: Final answer
    x = 6,119.65

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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.