Home / 26,426.54-39,638.77-8,658.53

Finding the Fourth Proportional to 26,426.54, 39,638.77 and 8,658.53

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Solution

The fourth proportional to 26,426.54, 39,638.77 and 8,658.53 is: 12,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,426.54 : 39,638.77 = 8,658.53 : x
  2. Step 2: Convert to fraction form
    26,426.54/39,638.77 = 8,658.53/x
  3. Step 3: Cross multiply
    26,426.54x = 39,638.77 × 8,658.53
  4. Step 4: Simplify right side
    26,426.54x = 343,213,408.01
  5. Step 5: Solve for x
    x = 343,213,408.01/26,426.54
  6. Step 6: Final answer
    x = 12,987.45

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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.