Home / 8,528.49-12,781.80-4,085.24

Finding the Fourth Proportional to 8,528.49, 12,781.80 and 4,085.24

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Solution

The fourth proportional to 8,528.49, 12,781.80 and 4,085.24 is: 6,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.49 : 12,781.80 = 4,085.24 : x
  2. Step 2: Convert to fraction form
    8,528.49/12,781.80 = 4,085.24/x
  3. Step 3: Cross multiply
    8,528.49x = 12,781.80 × 4,085.24
  4. Step 4: Simplify right side
    8,528.49x = 52,216,656.72
  5. Step 5: Solve for x
    x = 52,216,656.72/8,528.49
  6. Step 6: Final answer
    x = 6,122.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.