Home / 26,783.66-40,123.20-12,723.68

Finding the Fourth Proportional to 26,783.66, 40,123.20 and 12,723.68

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Solution

The fourth proportional to 26,783.66, 40,123.20 and 12,723.68 is: 19,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,783.66 : 40,123.20 = 12,723.68 : x
  2. Step 2: Convert to fraction form
    26,783.66/40,123.20 = 12,723.68/x
  3. Step 3: Cross multiply
    26,783.66x = 40,123.20 × 12,723.68
  4. Step 4: Simplify right side
    26,783.66x = 510,514,757.38
  5. Step 5: Solve for x
    x = 510,514,757.38/26,783.66
  6. Step 6: Final answer
    x = 19,060.68

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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.