Home / 13,319.93-18,369.64-8,599.25

Finding the Fourth Proportional to 13,319.93, 18,369.64 and 8,599.25

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Solution

The fourth proportional to 13,319.93, 18,369.64 and 8,599.25 is: 11,859.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,319.93 : 18,369.64 = 8,599.25 : x
  2. Step 2: Convert to fraction form
    13,319.93/18,369.64 = 8,599.25/x
  3. Step 3: Cross multiply
    13,319.93x = 18,369.64 × 8,599.25
  4. Step 4: Simplify right side
    13,319.93x = 157,965,126.77
  5. Step 5: Solve for x
    x = 157,965,126.77/13,319.93
  6. Step 6: Final answer
    x = 11,859.31

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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.