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Finding the Fourth Proportional to 12,827.13, 17,703.84 and 7,521.94

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Solution

The fourth proportional to 12,827.13, 17,703.84 and 7,521.94 is: 10,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,827.13 : 17,703.84 = 7,521.94 : x
  2. Step 2: Convert to fraction form
    12,827.13/17,703.84 = 7,521.94/x
  3. Step 3: Cross multiply
    12,827.13x = 17,703.84 × 7,521.94
  4. Step 4: Simplify right side
    12,827.13x = 133,167,222.25
  5. Step 5: Solve for x
    x = 133,167,222.25/12,827.13
  6. Step 6: Final answer
    x = 10,381.68

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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.