Home / 26,005.03-39,011.60-8,470.78

Finding the Fourth Proportional to 26,005.03, 39,011.60 and 8,470.78

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Solution

The fourth proportional to 26,005.03, 39,011.60 and 8,470.78 is: 12,707.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,005.03 : 39,011.60 = 8,470.78 : x
  2. Step 2: Convert to fraction form
    26,005.03/39,011.60 = 8,470.78/x
  3. Step 3: Cross multiply
    26,005.03x = 39,011.60 × 8,470.78
  4. Step 4: Simplify right side
    26,005.03x = 330,458,638.69
  5. Step 5: Solve for x
    x = 330,458,638.69/26,005.03
  6. Step 6: Final answer
    x = 12,707.49

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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.