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Finding the Fourth Proportional to 8,345.91, 12,508.47 and 7,303.44

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Solution

The fourth proportional to 8,345.91, 12,508.47 and 7,303.44 is: 10,946.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.91 : 12,508.47 = 7,303.44 : x
  2. Step 2: Convert to fraction form
    8,345.91/12,508.47 = 7,303.44/x
  3. Step 3: Cross multiply
    8,345.91x = 12,508.47 × 7,303.44
  4. Step 4: Simplify right side
    8,345.91x = 91,354,860.14
  5. Step 5: Solve for x
    x = 91,354,860.14/8,345.91
  6. Step 6: Final answer
    x = 10,946.06

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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.