Home / 15,702.82-21,669.52-8,532.56

Finding the Fourth Proportional to 15,702.82, 21,669.52 and 8,532.56

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Solution

The fourth proportional to 15,702.82, 21,669.52 and 8,532.56 is: 11,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.82 : 21,669.52 = 8,532.56 : x
  2. Step 2: Convert to fraction form
    15,702.82/21,669.52 = 8,532.56/x
  3. Step 3: Cross multiply
    15,702.82x = 21,669.52 × 8,532.56
  4. Step 4: Simplify right side
    15,702.82x = 184,896,479.57
  5. Step 5: Solve for x
    x = 184,896,479.57/15,702.82
  6. Step 6: Final answer
    x = 11,774.73

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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.