Home / 13,060.15-18,022.95-7,091.77

Finding the Fourth Proportional to 13,060.15, 18,022.95 and 7,091.77

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Solution

The fourth proportional to 13,060.15, 18,022.95 and 7,091.77 is: 9,786.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.15 : 18,022.95 = 7,091.77 : x
  2. Step 2: Convert to fraction form
    13,060.15/18,022.95 = 7,091.77/x
  3. Step 3: Cross multiply
    13,060.15x = 18,022.95 × 7,091.77
  4. Step 4: Simplify right side
    13,060.15x = 127,814,616.12
  5. Step 5: Solve for x
    x = 127,814,616.12/13,060.15
  6. Step 6: Final answer
    x = 9,786.61

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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.