Home / 13,526.08-20,288.88-5,207.90

Finding the Fourth Proportional to 13,526.08, 20,288.88 and 5,207.90

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Solution

The fourth proportional to 13,526.08, 20,288.88 and 5,207.90 is: 7,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.08 : 20,288.88 = 5,207.90 : x
  2. Step 2: Convert to fraction form
    13,526.08/20,288.88 = 5,207.90/x
  3. Step 3: Cross multiply
    13,526.08x = 20,288.88 × 5,207.90
  4. Step 4: Simplify right side
    13,526.08x = 105,662,458.15
  5. Step 5: Solve for x
    x = 105,662,458.15/13,526.08
  6. Step 6: Final answer
    x = 7,811.76

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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.