Home / 8,747.88-12,071.46-4,971.12

Finding the Fourth Proportional to 8,747.88, 12,071.46 and 4,971.12

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Solution

The fourth proportional to 8,747.88, 12,071.46 and 4,971.12 is: 6,859.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.88 : 12,071.46 = 4,971.12 : x
  2. Step 2: Convert to fraction form
    8,747.88/12,071.46 = 4,971.12/x
  3. Step 3: Cross multiply
    8,747.88x = 12,071.46 × 4,971.12
  4. Step 4: Simplify right side
    8,747.88x = 60,008,676.24
  5. Step 5: Solve for x
    x = 60,008,676.24/8,747.88
  6. Step 6: Final answer
    x = 6,859.80

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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.