Home / 13,700.06-18,917.60-8,673.16

Finding the Fourth Proportional to 13,700.06, 18,917.60 and 8,673.16

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Solution

The fourth proportional to 13,700.06, 18,917.60 and 8,673.16 is: 11,976.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.06 : 18,917.60 = 8,673.16 : x
  2. Step 2: Convert to fraction form
    13,700.06/18,917.60 = 8,673.16/x
  3. Step 3: Cross multiply
    13,700.06x = 18,917.60 × 8,673.16
  4. Step 4: Simplify right side
    13,700.06x = 164,075,371.62
  5. Step 5: Solve for x
    x = 164,075,371.62/13,700.06
  6. Step 6: Final answer
    x = 11,976.25

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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.