Home / 13,837.75-20,756.43-6,438.07

Finding the Fourth Proportional to 13,837.75, 20,756.43 and 6,438.07

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Solution

The fourth proportional to 13,837.75, 20,756.43 and 6,438.07 is: 9,657.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,837.75 : 20,756.43 = 6,438.07 : x
  2. Step 2: Convert to fraction form
    13,837.75/20,756.43 = 6,438.07/x
  3. Step 3: Cross multiply
    13,837.75x = 20,756.43 × 6,438.07
  4. Step 4: Simplify right side
    13,837.75x = 133,631,349.29
  5. Step 5: Solve for x
    x = 133,631,349.29/13,837.75
  6. Step 6: Final answer
    x = 9,657.01

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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.