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Finding the Fourth Proportional to 7,898.58, 11,846.91 and 6,590.64

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Solution

The fourth proportional to 7,898.58, 11,846.91 and 6,590.64 is: 9,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898.58 : 11,846.91 = 6,590.64 : x
  2. Step 2: Convert to fraction form
    7,898.58/11,846.91 = 6,590.64/x
  3. Step 3: Cross multiply
    7,898.58x = 11,846.91 × 6,590.64
  4. Step 4: Simplify right side
    7,898.58x = 78,078,718.92
  5. Step 5: Solve for x
    x = 78,078,718.92/7,898.58
  6. Step 6: Final answer
    x = 9,885.16

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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.