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Finding the Fourth Proportional to 9,880.92, 14,807.16 and 4,257.05

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Solution

The fourth proportional to 9,880.92, 14,807.16 and 4,257.05 is: 6,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,880.92 : 14,807.16 = 4,257.05 : x
  2. Step 2: Convert to fraction form
    9,880.92/14,807.16 = 4,257.05/x
  3. Step 3: Cross multiply
    9,880.92x = 14,807.16 × 4,257.05
  4. Step 4: Simplify right side
    9,880.92x = 63,034,746.44
  5. Step 5: Solve for x
    x = 63,034,746.44/9,880.92
  6. Step 6: Final answer
    x = 6,379.44

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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.