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Finding the Fourth Proportional to 8,590.01, 12,859.08 and 7,768.67

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Solution

The fourth proportional to 8,590.01, 12,859.08 and 7,768.67 is: 11,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.01 : 12,859.08 = 7,768.67 : x
  2. Step 2: Convert to fraction form
    8,590.01/12,859.08 = 7,768.67/x
  3. Step 3: Cross multiply
    8,590.01x = 12,859.08 × 7,768.67
  4. Step 4: Simplify right side
    8,590.01x = 99,897,949.02
  5. Step 5: Solve for x
    x = 99,897,949.02/8,590.01
  6. Step 6: Final answer
    x = 11,629.55

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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.