Home / 14,071.20-19,455.36-12,321.60

Finding the Fourth Proportional to 14,071.20, 19,455.36 and 12,321.60

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Solution

The fourth proportional to 14,071.20, 19,455.36 and 12,321.60 is: 17,036.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,071.20 : 19,455.36 = 12,321.60 : x
  2. Step 2: Convert to fraction form
    14,071.20/19,455.36 = 12,321.60/x
  3. Step 3: Cross multiply
    14,071.20x = 19,455.36 × 12,321.60
  4. Step 4: Simplify right side
    14,071.20x = 239,721,163.78
  5. Step 5: Solve for x
    x = 239,721,163.78/14,071.20
  6. Step 6: Final answer
    x = 17,036.30

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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.