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Finding the Fourth Proportional to 8,656.94, 12,988.85 and 4,499.57

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Solution

The fourth proportional to 8,656.94, 12,988.85 and 4,499.57 is: 6,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.94 : 12,988.85 = 4,499.57 : x
  2. Step 2: Convert to fraction form
    8,656.94/12,988.85 = 4,499.57/x
  3. Step 3: Cross multiply
    8,656.94x = 12,988.85 × 4,499.57
  4. Step 4: Simplify right side
    8,656.94x = 58,444,249.77
  5. Step 5: Solve for x
    x = 58,444,249.77/8,656.94
  6. Step 6: Final answer
    x = 6,751.14

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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.