Home / 26,519.05-39,780.33-7,800.76

Finding the Fourth Proportional to 26,519.05, 39,780.33 and 7,800.76

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Solution

The fourth proportional to 26,519.05, 39,780.33 and 7,800.76 is: 11,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,519.05 : 39,780.33 = 7,800.76 : x
  2. Step 2: Convert to fraction form
    26,519.05/39,780.33 = 7,800.76/x
  3. Step 3: Cross multiply
    26,519.05x = 39,780.33 × 7,800.76
  4. Step 4: Simplify right side
    26,519.05x = 310,316,807.05
  5. Step 5: Solve for x
    x = 310,316,807.05/26,519.05
  6. Step 6: Final answer
    x = 11,701.66

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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.