Home / 13,596.09-18,733.86-12,661.08

Finding the Fourth Proportional to 13,596.09, 18,733.86 and 12,661.08

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Solution

The fourth proportional to 13,596.09, 18,733.86 and 12,661.08 is: 17,445.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,596.09 : 18,733.86 = 12,661.08 : x
  2. Step 2: Convert to fraction form
    13,596.09/18,733.86 = 12,661.08/x
  3. Step 3: Cross multiply
    13,596.09x = 18,733.86 × 12,661.08
  4. Step 4: Simplify right side
    13,596.09x = 237,190,900.17
  5. Step 5: Solve for x
    x = 237,190,900.17/13,596.09
  6. Step 6: Final answer
    x = 17,445.52

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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.