Home / 8,216.60-12,320.40-4,047.44

Finding the Fourth Proportional to 8,216.60, 12,320.40 and 4,047.44

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Solution

The fourth proportional to 8,216.60, 12,320.40 and 4,047.44 is: 6,068.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,216.60 : 12,320.40 = 4,047.44 : x
  2. Step 2: Convert to fraction form
    8,216.60/12,320.40 = 4,047.44/x
  3. Step 3: Cross multiply
    8,216.60x = 12,320.40 × 4,047.44
  4. Step 4: Simplify right side
    8,216.60x = 49,866,079.78
  5. Step 5: Solve for x
    x = 49,866,079.78/8,216.60
  6. Step 6: Final answer
    x = 6,068.94

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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.