Home / 17,385.60-23,999.04-11,107.20

Finding the Fourth Proportional to 17,385.60, 23,999.04 and 11,107.20

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Solution

The fourth proportional to 17,385.60, 23,999.04 and 11,107.20 is: 15,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,385.60 : 23,999.04 = 11,107.20 : x
  2. Step 2: Convert to fraction form
    17,385.60/23,999.04 = 11,107.20/x
  3. Step 3: Cross multiply
    17,385.60x = 23,999.04 × 11,107.20
  4. Step 4: Simplify right side
    17,385.60x = 266,562,137.09
  5. Step 5: Solve for x
    x = 266,562,137.09/17,385.60
  6. Step 6: Final answer
    x = 15,332.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.