Home / 13,318.53-18,393.26-11,058.08

Finding the Fourth Proportional to 13,318.53, 18,393.26 and 11,058.08

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Solution

The fourth proportional to 13,318.53, 18,393.26 and 11,058.08 is: 15,271.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.53 : 18,393.26 = 11,058.08 : x
  2. Step 2: Convert to fraction form
    13,318.53/18,393.26 = 11,058.08/x
  3. Step 3: Cross multiply
    13,318.53x = 18,393.26 × 11,058.08
  4. Step 4: Simplify right side
    13,318.53x = 203,393,993.28
  5. Step 5: Solve for x
    x = 203,393,993.28/13,318.53
  6. Step 6: Final answer
    x = 15,271.50

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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.