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Finding the Fourth Proportional to 17,221.71, 25,807.89 and 9,810.86

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Solution

The fourth proportional to 17,221.71, 25,807.89 and 9,810.86 is: 14,702.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,221.71 : 25,807.89 = 9,810.86 : x
  2. Step 2: Convert to fraction form
    17,221.71/25,807.89 = 9,810.86/x
  3. Step 3: Cross multiply
    17,221.71x = 25,807.89 × 9,810.86
  4. Step 4: Simplify right side
    17,221.71x = 253,197,466.65
  5. Step 5: Solve for x
    x = 253,197,466.65/17,221.71
  6. Step 6: Final answer
    x = 14,702.23

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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.