Home / 13,602.08-20,400.96-5,285.90

Finding the Fourth Proportional to 13,602.08, 20,400.96 and 5,285.90

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Solution

The fourth proportional to 13,602.08, 20,400.96 and 5,285.90 is: 7,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,602.08 : 20,400.96 = 5,285.90 : x
  2. Step 2: Convert to fraction form
    13,602.08/20,400.96 = 5,285.90/x
  3. Step 3: Cross multiply
    13,602.08x = 20,400.96 × 5,285.90
  4. Step 4: Simplify right side
    13,602.08x = 107,837,434.46
  5. Step 5: Solve for x
    x = 107,837,434.46/13,602.08
  6. Step 6: Final answer
    x = 7,928.01

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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.