Home / 8,257.21-11,397.51-4,722.77

Finding the Fourth Proportional to 8,257.21, 11,397.51 and 4,722.77

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Solution

The fourth proportional to 8,257.21, 11,397.51 and 4,722.77 is: 6,518.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,257.21 : 11,397.51 = 4,722.77 : x
  2. Step 2: Convert to fraction form
    8,257.21/11,397.51 = 4,722.77/x
  3. Step 3: Cross multiply
    8,257.21x = 11,397.51 × 4,722.77
  4. Step 4: Simplify right side
    8,257.21x = 53,827,846.80
  5. Step 5: Solve for x
    x = 53,827,846.80/8,257.21
  6. Step 6: Final answer
    x = 6,518.89

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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.