Home / 13,194.28-18,208.02-7,889.32

Finding the Fourth Proportional to 13,194.28, 18,208.02 and 7,889.32

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Solution

The fourth proportional to 13,194.28, 18,208.02 and 7,889.32 is: 10,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,194.28 : 18,208.02 = 7,889.32 : x
  2. Step 2: Convert to fraction form
    13,194.28/18,208.02 = 7,889.32/x
  3. Step 3: Cross multiply
    13,194.28x = 18,208.02 × 7,889.32
  4. Step 4: Simplify right side
    13,194.28x = 143,648,896.35
  5. Step 5: Solve for x
    x = 143,648,896.35/13,194.28
  6. Step 6: Final answer
    x = 10,887.21

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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.