Home / 8,605.17-12,886.87-4,377.30

Finding the Fourth Proportional to 8,605.17, 12,886.87 and 4,377.30

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Solution

The fourth proportional to 8,605.17, 12,886.87 and 4,377.30 is: 6,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.17 : 12,886.87 = 4,377.30 : x
  2. Step 2: Convert to fraction form
    8,605.17/12,886.87 = 4,377.30/x
  3. Step 3: Cross multiply
    8,605.17x = 12,886.87 × 4,377.30
  4. Step 4: Simplify right side
    8,605.17x = 56,409,696.05
  5. Step 5: Solve for x
    x = 56,409,696.05/8,605.17
  6. Step 6: Final answer
    x = 6,555.33

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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.