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Finding the Fourth Proportional to 15,019.41, 20,702.91 and 11,827.65

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Solution

The fourth proportional to 15,019.41, 20,702.91 and 11,827.65 is: 16,303.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.41 : 20,702.91 = 11,827.65 : x
  2. Step 2: Convert to fraction form
    15,019.41/20,702.91 = 11,827.65/x
  3. Step 3: Cross multiply
    15,019.41x = 20,702.91 × 11,827.65
  4. Step 4: Simplify right side
    15,019.41x = 244,866,773.46
  5. Step 5: Solve for x
    x = 244,866,773.46/15,019.41
  6. Step 6: Final answer
    x = 16,303.36

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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.