Home / 18,261.72-27,393.93-5,113.59

Finding the Fourth Proportional to 18,261.72, 27,393.93 and 5,113.59

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Solution

The fourth proportional to 18,261.72, 27,393.93 and 5,113.59 is: 7,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.72 : 27,393.93 = 5,113.59 : x
  2. Step 2: Convert to fraction form
    18,261.72/27,393.93 = 5,113.59/x
  3. Step 3: Cross multiply
    18,261.72x = 27,393.93 × 5,113.59
  4. Step 4: Simplify right side
    18,261.72x = 140,081,326.51
  5. Step 5: Solve for x
    x = 140,081,326.51/18,261.72
  6. Step 6: Final answer
    x = 7,670.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.