Home / 26,188.64-39,289.12-8,658.48

Finding the Fourth Proportional to 26,188.64, 39,289.12 and 8,658.48

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Solution

The fourth proportional to 26,188.64, 39,289.12 and 8,658.48 is: 12,989.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,188.64 : 39,289.12 = 8,658.48 : x
  2. Step 2: Convert to fraction form
    26,188.64/39,289.12 = 8,658.48/x
  3. Step 3: Cross multiply
    26,188.64x = 39,289.12 × 8,658.48
  4. Step 4: Simplify right side
    26,188.64x = 340,184,059.74
  5. Step 5: Solve for x
    x = 340,184,059.74/26,188.64
  6. Step 6: Final answer
    x = 12,989.76

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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.