Home / 8,511.98-12,756.91-4,763.60

Finding the Fourth Proportional to 8,511.98, 12,756.91 and 4,763.60

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Solution

The fourth proportional to 8,511.98, 12,756.91 and 4,763.60 is: 7,139.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,511.98 : 12,756.91 = 4,763.60 : x
  2. Step 2: Convert to fraction form
    8,511.98/12,756.91 = 4,763.60/x
  3. Step 3: Cross multiply
    8,511.98x = 12,756.91 × 4,763.60
  4. Step 4: Simplify right side
    8,511.98x = 60,768,869.31
  5. Step 5: Solve for x
    x = 60,768,869.31/8,511.98
  6. Step 6: Final answer
    x = 7,139.22

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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.