Home / 15,702.44-21,670.74-8,630.24

Finding the Fourth Proportional to 15,702.44, 21,670.74 and 8,630.24

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Solution

The fourth proportional to 15,702.44, 21,670.74 and 8,630.24 is: 11,910.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.44 : 21,670.74 = 8,630.24 : x
  2. Step 2: Convert to fraction form
    15,702.44/21,670.74 = 8,630.24/x
  3. Step 3: Cross multiply
    15,702.44x = 21,670.74 × 8,630.24
  4. Step 4: Simplify right side
    15,702.44x = 187,023,578.82
  5. Step 5: Solve for x
    x = 187,023,578.82/15,702.44
  6. Step 6: Final answer
    x = 11,910.48

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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.