Home / 13,937.96-20,868.68-8,995.36

Finding the Fourth Proportional to 13,937.96, 20,868.68 and 8,995.36

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Solution

The fourth proportional to 13,937.96, 20,868.68 and 8,995.36 is: 13,468.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.96 : 20,868.68 = 8,995.36 : x
  2. Step 2: Convert to fraction form
    13,937.96/20,868.68 = 8,995.36/x
  3. Step 3: Cross multiply
    13,937.96x = 20,868.68 × 8,995.36
  4. Step 4: Simplify right side
    13,937.96x = 187,721,289.32
  5. Step 5: Solve for x
    x = 187,721,289.32/13,937.96
  6. Step 6: Final answer
    x = 13,468.35

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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.