Home / 12,071.60-18,107.38-3,307.20

Finding the Fourth Proportional to 12,071.60, 18,107.38 and 3,307.20

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Solution

The fourth proportional to 12,071.60, 18,107.38 and 3,307.20 is: 4,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071.60 : 18,107.38 = 3,307.20 : x
  2. Step 2: Convert to fraction form
    12,071.60/18,107.38 = 3,307.20/x
  3. Step 3: Cross multiply
    12,071.60x = 18,107.38 × 3,307.20
  4. Step 4: Simplify right side
    12,071.60x = 59,884,663.37
  5. Step 5: Solve for x
    x = 59,884,663.37/12,071.60
  6. Step 6: Final answer
    x = 4,960.79

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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.