Home / 8,722.85-12,037.79-4,945.91

Finding the Fourth Proportional to 8,722.85, 12,037.79 and 4,945.91

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Solution

The fourth proportional to 8,722.85, 12,037.79 and 4,945.91 is: 6,825.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.85 : 12,037.79 = 4,945.91 : x
  2. Step 2: Convert to fraction form
    8,722.85/12,037.79 = 4,945.91/x
  3. Step 3: Cross multiply
    8,722.85x = 12,037.79 × 4,945.91
  4. Step 4: Simplify right side
    8,722.85x = 59,537,741.02
  5. Step 5: Solve for x
    x = 59,537,741.02/8,722.85
  6. Step 6: Final answer
    x = 6,825.50

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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.