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Finding the Fourth Proportional to 26,443.51, 39,665.40 and 8,913.49

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Solution

The fourth proportional to 26,443.51, 39,665.40 and 8,913.49 is: 13,370.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,443.51 : 39,665.40 = 8,913.49 : x
  2. Step 2: Convert to fraction form
    26,443.51/39,665.40 = 8,913.49/x
  3. Step 3: Cross multiply
    26,443.51x = 39,665.40 × 8,913.49
  4. Step 4: Simplify right side
    26,443.51x = 353,557,146.25
  5. Step 5: Solve for x
    x = 353,557,146.25/26,443.51
  6. Step 6: Final answer
    x = 13,370.28

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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.