Home / 13,021.83-19,539.63-7,102.98

Finding the Fourth Proportional to 13,021.83, 19,539.63 and 7,102.98

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Solution

The fourth proportional to 13,021.83, 19,539.63 and 7,102.98 is: 10,658.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.83 : 19,539.63 = 7,102.98 : x
  2. Step 2: Convert to fraction form
    13,021.83/19,539.63 = 7,102.98/x
  3. Step 3: Cross multiply
    13,021.83x = 19,539.63 × 7,102.98
  4. Step 4: Simplify right side
    13,021.83x = 138,789,601.10
  5. Step 5: Solve for x
    x = 138,789,601.10/13,021.83
  6. Step 6: Final answer
    x = 10,658.23

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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.