Home / 15,703.74-21,671.55-8,630.82

Finding the Fourth Proportional to 15,703.74, 21,671.55 and 8,630.82

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Solution

The fourth proportional to 15,703.74, 21,671.55 and 8,630.82 is: 11,910.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,703.74 : 21,671.55 = 8,630.82 : x
  2. Step 2: Convert to fraction form
    15,703.74/21,671.55 = 8,630.82/x
  3. Step 3: Cross multiply
    15,703.74x = 21,671.55 × 8,630.82
  4. Step 4: Simplify right side
    15,703.74x = 187,043,247.17
  5. Step 5: Solve for x
    x = 187,043,247.17/15,703.74
  6. Step 6: Final answer
    x = 11,910.75

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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.