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Finding the Fourth Proportional to 17,485.79, 26,235.17 and 8,130.83

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Solution

The fourth proportional to 17,485.79, 26,235.17 and 8,130.83 is: 12,199.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,485.79 : 26,235.17 = 8,130.83 : x
  2. Step 2: Convert to fraction form
    17,485.79/26,235.17 = 8,130.83/x
  3. Step 3: Cross multiply
    17,485.79x = 26,235.17 × 8,130.83
  4. Step 4: Simplify right side
    17,485.79x = 213,313,707.29
  5. Step 5: Solve for x
    x = 213,313,707.29/17,485.79
  6. Step 6: Final answer
    x = 12,199.26

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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.