Home / 26,088.05-39,128.61-7,369.78

Finding the Fourth Proportional to 26,088.05, 39,128.61 and 7,369.78

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Solution

The fourth proportional to 26,088.05, 39,128.61 and 7,369.78 is: 11,053.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,088.05 : 39,128.61 = 7,369.78 : x
  2. Step 2: Convert to fraction form
    26,088.05/39,128.61 = 7,369.78/x
  3. Step 3: Cross multiply
    26,088.05x = 39,128.61 × 7,369.78
  4. Step 4: Simplify right side
    26,088.05x = 288,369,428.72
  5. Step 5: Solve for x
    x = 288,369,428.72/26,088.05
  6. Step 6: Final answer
    x = 11,053.70

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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.