Home / 13,064.37-18,029.06-7,400.28

Finding the Fourth Proportional to 13,064.37, 18,029.06 and 7,400.28

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Solution

The fourth proportional to 13,064.37, 18,029.06 and 7,400.28 is: 10,212.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,064.37 : 18,029.06 = 7,400.28 : x
  2. Step 2: Convert to fraction form
    13,064.37/18,029.06 = 7,400.28/x
  3. Step 3: Cross multiply
    13,064.37x = 18,029.06 × 7,400.28
  4. Step 4: Simplify right side
    13,064.37x = 133,420,055.14
  5. Step 5: Solve for x
    x = 133,420,055.14/13,064.37
  6. Step 6: Final answer
    x = 10,212.52

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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.