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Finding the Fourth Proportional to 26,649.90, 39,968.01 and 7,925.08

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Solution

The fourth proportional to 26,649.90, 39,968.01 and 7,925.08 is: 11,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,649.90 : 39,968.01 = 7,925.08 : x
  2. Step 2: Convert to fraction form
    26,649.90/39,968.01 = 7,925.08/x
  3. Step 3: Cross multiply
    26,649.90x = 39,968.01 × 7,925.08
  4. Step 4: Simplify right side
    26,649.90x = 316,749,676.69
  5. Step 5: Solve for x
    x = 316,749,676.69/26,649.90
  6. Step 6: Final answer
    x = 11,885.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.