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Finding the Fourth Proportional to 9,039.51, 13,507.44 and 6,890.48

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Solution

The fourth proportional to 9,039.51, 13,507.44 and 6,890.48 is: 10,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.51 : 13,507.44 = 6,890.48 : x
  2. Step 2: Convert to fraction form
    9,039.51/13,507.44 = 6,890.48/x
  3. Step 3: Cross multiply
    9,039.51x = 13,507.44 × 6,890.48
  4. Step 4: Simplify right side
    9,039.51x = 93,072,778.94
  5. Step 5: Solve for x
    x = 93,072,778.94/9,039.51
  6. Step 6: Final answer
    x = 10,296.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.