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Finding the Fourth Proportional to 8,349.64, 11,510.20 and 6,356.72

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Solution

The fourth proportional to 8,349.64, 11,510.20 and 6,356.72 is: 8,762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,349.64 : 11,510.20 = 6,356.72 : x
  2. Step 2: Convert to fraction form
    8,349.64/11,510.20 = 6,356.72/x
  3. Step 3: Cross multiply
    8,349.64x = 11,510.20 × 6,356.72
  4. Step 4: Simplify right side
    8,349.64x = 73,167,118.54
  5. Step 5: Solve for x
    x = 73,167,118.54/8,349.64
  6. Step 6: Final answer
    x = 8,762.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.