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Finding the Fourth Proportional to 7,916.44, 11,855.22 and 6,345.40

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Solution

The fourth proportional to 7,916.44, 11,855.22 and 6,345.40 is: 9,502.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.44 : 11,855.22 = 6,345.40 : x
  2. Step 2: Convert to fraction form
    7,916.44/11,855.22 = 6,345.40/x
  3. Step 3: Cross multiply
    7,916.44x = 11,855.22 × 6,345.40
  4. Step 4: Simplify right side
    7,916.44x = 75,226,112.99
  5. Step 5: Solve for x
    x = 75,226,112.99/7,916.44
  6. Step 6: Final answer
    x = 9,502.52

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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.