Home / 12,132.36-18,202.86-5,203.08

Finding the Fourth Proportional to 12,132.36, 18,202.86 and 5,203.08

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Solution

The fourth proportional to 12,132.36, 18,202.86 and 5,203.08 is: 7,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.36 : 18,202.86 = 5,203.08 : x
  2. Step 2: Convert to fraction form
    12,132.36/18,202.86 = 5,203.08/x
  3. Step 3: Cross multiply
    12,132.36x = 18,202.86 × 5,203.08
  4. Step 4: Simplify right side
    12,132.36x = 94,710,936.81
  5. Step 5: Solve for x
    x = 94,710,936.81/12,132.36
  6. Step 6: Final answer
    x = 7,806.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.