Home / 26,421.10-39,636.83-9,781.27

Finding the Fourth Proportional to 26,421.10, 39,636.83 and 9,781.27

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Solution

The fourth proportional to 26,421.10, 39,636.83 and 9,781.27 is: 14,673.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,421.10 : 39,636.83 = 9,781.27 : x
  2. Step 2: Convert to fraction form
    26,421.10/39,636.83 = 9,781.27/x
  3. Step 3: Cross multiply
    26,421.10x = 39,636.83 × 9,781.27
  4. Step 4: Simplify right side
    26,421.10x = 387,698,487.27
  5. Step 5: Solve for x
    x = 387,698,487.27/26,421.10
  6. Step 6: Final answer
    x = 14,673.82

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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.