Home / 11,285.75-15,570.73-7,309.91

Finding the Fourth Proportional to 11,285.75, 15,570.73 and 7,309.91

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Solution

The fourth proportional to 11,285.75, 15,570.73 and 7,309.91 is: 10,085.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.75 : 15,570.73 = 7,309.91 : x
  2. Step 2: Convert to fraction form
    11,285.75/15,570.73 = 7,309.91/x
  3. Step 3: Cross multiply
    11,285.75x = 15,570.73 × 7,309.91
  4. Step 4: Simplify right side
    11,285.75x = 113,820,634.93
  5. Step 5: Solve for x
    x = 113,820,634.93/11,285.75
  6. Step 6: Final answer
    x = 10,085.34

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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.