Home / 13,670.32-20,489.55-6,275.56

Finding the Fourth Proportional to 13,670.32, 20,489.55 and 6,275.56

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Solution

The fourth proportional to 13,670.32, 20,489.55 and 6,275.56 is: 9,406.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.32 : 20,489.55 = 6,275.56 : x
  2. Step 2: Convert to fraction form
    13,670.32/20,489.55 = 6,275.56/x
  3. Step 3: Cross multiply
    13,670.32x = 20,489.55 × 6,275.56
  4. Step 4: Simplify right side
    13,670.32x = 128,583,400.40
  5. Step 5: Solve for x
    x = 128,583,400.40/13,670.32
  6. Step 6: Final answer
    x = 9,406.03

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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.