Home / 26,445.66-39,666.58-12,408.88

Finding the Fourth Proportional to 26,445.66, 39,666.58 and 12,408.88

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Solution

The fourth proportional to 26,445.66, 39,666.58 and 12,408.88 is: 18,612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,445.66 : 39,666.58 = 12,408.88 : x
  2. Step 2: Convert to fraction form
    26,445.66/39,666.58 = 12,408.88/x
  3. Step 3: Cross multiply
    26,445.66x = 39,666.58 × 12,408.88
  4. Step 4: Simplify right side
    26,445.66x = 492,217,831.23
  5. Step 5: Solve for x
    x = 492,217,831.23/26,445.66
  6. Step 6: Final answer
    x = 18,612.42

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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.