Home / 13,526.90-20,293.23-7,984.37

Finding the Fourth Proportional to 13,526.90, 20,293.23 and 7,984.37

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Solution

The fourth proportional to 13,526.90, 20,293.23 and 7,984.37 is: 11,978.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.90 : 20,293.23 = 7,984.37 : x
  2. Step 2: Convert to fraction form
    13,526.90/20,293.23 = 7,984.37/x
  3. Step 3: Cross multiply
    13,526.90x = 20,293.23 × 7,984.37
  4. Step 4: Simplify right side
    13,526.90x = 162,028,737.49
  5. Step 5: Solve for x
    x = 162,028,737.49/13,526.90
  6. Step 6: Final answer
    x = 11,978.26

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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.