Home / 26,385.86-39,580.85-7,666.20

Finding the Fourth Proportional to 26,385.86, 39,580.85 and 7,666.20

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Solution

The fourth proportional to 26,385.86, 39,580.85 and 7,666.20 is: 11,499.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,385.86 : 39,580.85 = 7,666.20 : x
  2. Step 2: Convert to fraction form
    26,385.86/39,580.85 = 7,666.20/x
  3. Step 3: Cross multiply
    26,385.86x = 39,580.85 × 7,666.20
  4. Step 4: Simplify right side
    26,385.86x = 303,434,712.27
  5. Step 5: Solve for x
    x = 303,434,712.27/26,385.86
  6. Step 6: Final answer
    x = 11,499.90

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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.