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Finding the Fourth Proportional to 15,985, 22,060.94 and 9,613.68

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Solution

The fourth proportional to 15,985, 22,060.94 and 9,613.68 is: 13,267.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,985 : 22,060.94 = 9,613.68 : x
  2. Step 2: Convert to fraction form
    15,985/22,060.94 = 9,613.68/x
  3. Step 3: Cross multiply
    15,985x = 22,060.94 × 9,613.68
  4. Step 4: Simplify right side
    15,985x = 212,086,817.66
  5. Step 5: Solve for x
    x = 212,086,817.66/15,985
  6. Step 6: Final answer
    x = 13,267.86

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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.