Home / 26,669.10-40,005.60-9,138.78

Finding the Fourth Proportional to 26,669.10, 40,005.60 and 9,138.78

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Solution

The fourth proportional to 26,669.10, 40,005.60 and 9,138.78 is: 13,708.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,669.10 : 40,005.60 = 9,138.78 : x
  2. Step 2: Convert to fraction form
    26,669.10/40,005.60 = 9,138.78/x
  3. Step 3: Cross multiply
    26,669.10x = 40,005.60 × 9,138.78
  4. Step 4: Simplify right side
    26,669.10x = 365,602,377.17
  5. Step 5: Solve for x
    x = 365,602,377.17/26,669.10
  6. Step 6: Final answer
    x = 13,708.84

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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.