Home / 13,875.33-20,816.06-6,475.75

Finding the Fourth Proportional to 13,875.33, 20,816.06 and 6,475.75

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Solution

The fourth proportional to 13,875.33, 20,816.06 and 6,475.75 is: 9,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.33 : 20,816.06 = 6,475.75 : x
  2. Step 2: Convert to fraction form
    13,875.33/20,816.06 = 6,475.75/x
  3. Step 3: Cross multiply
    13,875.33x = 20,816.06 × 6,475.75
  4. Step 4: Simplify right side
    13,875.33x = 134,799,570.77
  5. Step 5: Solve for x
    x = 134,799,570.77/13,875.33
  6. Step 6: Final answer
    x = 9,715.06

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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.