Home / 26,188.42-39,288.77-8,658.13

Finding the Fourth Proportional to 26,188.42, 39,288.77 and 8,658.13

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Solution

The fourth proportional to 26,188.42, 39,288.77 and 8,658.13 is: 12,989.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,188.42 : 39,288.77 = 8,658.13 : x
  2. Step 2: Convert to fraction form
    26,188.42/39,288.77 = 8,658.13/x
  3. Step 3: Cross multiply
    26,188.42x = 39,288.77 × 8,658.13
  4. Step 4: Simplify right side
    26,188.42x = 340,167,038.47
  5. Step 5: Solve for x
    x = 340,167,038.47/26,188.42
  6. Step 6: Final answer
    x = 12,989.22

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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.