Home / 8,506.80-11,739.84-4,972.08

Finding the Fourth Proportional to 8,506.80, 11,739.84 and 4,972.08

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Solution

The fourth proportional to 8,506.80, 11,739.84 and 4,972.08 is: 6,861.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506.80 : 11,739.84 = 4,972.08 : x
  2. Step 2: Convert to fraction form
    8,506.80/11,739.84 = 4,972.08/x
  3. Step 3: Cross multiply
    8,506.80x = 11,739.84 × 4,972.08
  4. Step 4: Simplify right side
    8,506.80x = 58,371,423.67
  5. Step 5: Solve for x
    x = 58,371,423.67/8,506.80
  6. Step 6: Final answer
    x = 6,861.74

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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.