Home / 13,086.36-18,058.10-7,782.52

Finding the Fourth Proportional to 13,086.36, 18,058.10 and 7,782.52

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Solution

The fourth proportional to 13,086.36, 18,058.10 and 7,782.52 is: 10,739.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.36 : 18,058.10 = 7,782.52 : x
  2. Step 2: Convert to fraction form
    13,086.36/18,058.10 = 7,782.52/x
  3. Step 3: Cross multiply
    13,086.36x = 18,058.10 × 7,782.52
  4. Step 4: Simplify right side
    13,086.36x = 140,537,524.41
  5. Step 5: Solve for x
    x = 140,537,524.41/13,086.36
  6. Step 6: Final answer
    x = 10,739.24

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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.