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Finding the Fourth Proportional to 8,590.06, 12,943.60 and 7,064.24

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Solution

The fourth proportional to 8,590.06, 12,943.60 and 7,064.24 is: 10,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.06 : 12,943.60 = 7,064.24 : x
  2. Step 2: Convert to fraction form
    8,590.06/12,943.60 = 7,064.24/x
  3. Step 3: Cross multiply
    8,590.06x = 12,943.60 × 7,064.24
  4. Step 4: Simplify right side
    8,590.06x = 91,436,696.86
  5. Step 5: Solve for x
    x = 91,436,696.86/8,590.06
  6. Step 6: Final answer
    x = 10,644.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.