Home / 8,690.49-12,000.69-5,552.15

Finding the Fourth Proportional to 8,690.49, 12,000.69 and 5,552.15

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Solution

The fourth proportional to 8,690.49, 12,000.69 and 5,552.15 is: 7,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.49 : 12,000.69 = 5,552.15 : x
  2. Step 2: Convert to fraction form
    8,690.49/12,000.69 = 5,552.15/x
  3. Step 3: Cross multiply
    8,690.49x = 12,000.69 × 5,552.15
  4. Step 4: Simplify right side
    8,690.49x = 66,629,570.98
  5. Step 5: Solve for x
    x = 66,629,570.98/8,690.49
  6. Step 6: Final answer
    x = 7,666.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.