Home / 13,056.09-18,018.25-7,953.49

Finding the Fourth Proportional to 13,056.09, 18,018.25 and 7,953.49

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Solution

The fourth proportional to 13,056.09, 18,018.25 and 7,953.49 is: 10,976.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.09 : 18,018.25 = 7,953.49 : x
  2. Step 2: Convert to fraction form
    13,056.09/18,018.25 = 7,953.49/x
  3. Step 3: Cross multiply
    13,056.09x = 18,018.25 × 7,953.49
  4. Step 4: Simplify right side
    13,056.09x = 143,307,973.83
  5. Step 5: Solve for x
    x = 143,307,973.83/13,056.09
  6. Step 6: Final answer
    x = 10,976.33

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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.