Home / 11,315.62-15,625.47-7,073.93

Finding the Fourth Proportional to 11,315.62, 15,625.47 and 7,073.93

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Solution

The fourth proportional to 11,315.62, 15,625.47 and 7,073.93 is: 9,768.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.62 : 15,625.47 = 7,073.93 : x
  2. Step 2: Convert to fraction form
    11,315.62/15,625.47 = 7,073.93/x
  3. Step 3: Cross multiply
    11,315.62x = 15,625.47 × 7,073.93
  4. Step 4: Simplify right side
    11,315.62x = 110,533,481.00
  5. Step 5: Solve for x
    x = 110,533,481.00/11,315.62
  6. Step 6: Final answer
    x = 9,768.22

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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.