Home / 8,511.04-12,753.39-4,345.21

Finding the Fourth Proportional to 8,511.04, 12,753.39 and 4,345.21

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Solution

The fourth proportional to 8,511.04, 12,753.39 and 4,345.21 is: 6,511.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.04 : 12,753.39 = 4,345.21 : x
  2. Step 2: Convert to fraction form
    8,511.04/12,753.39 = 4,345.21/x
  3. Step 3: Cross multiply
    8,511.04x = 12,753.39 × 4,345.21
  4. Step 4: Simplify right side
    8,511.04x = 55,416,157.76
  5. Step 5: Solve for x
    x = 55,416,157.76/8,511.04
  6. Step 6: Final answer
    x = 6,511.09

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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.