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Finding the Fourth Proportional to 15,702.53, 21,669.32 and 8,532.29

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Solution

The fourth proportional to 15,702.53, 21,669.32 and 8,532.29 is: 11,774.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.53 : 21,669.32 = 8,532.29 : x
  2. Step 2: Convert to fraction form
    15,702.53/21,669.32 = 8,532.29/x
  3. Step 3: Cross multiply
    15,702.53x = 21,669.32 × 8,532.29
  4. Step 4: Simplify right side
    15,702.53x = 184,888,997.85
  5. Step 5: Solve for x
    x = 184,888,997.85/15,702.53
  6. Step 6: Final answer
    x = 11,774.48

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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.