Home / 13,526.20-20,289.30-13,007.80

Finding the Fourth Proportional to 13,526.20, 20,289.30 and 13,007.80

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Solution

The fourth proportional to 13,526.20, 20,289.30 and 13,007.80 is: 19,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,526.20 : 20,289.30 = 13,007.80 : x
  2. Step 2: Convert to fraction form
    13,526.20/20,289.30 = 13,007.80/x
  3. Step 3: Cross multiply
    13,526.20x = 20,289.30 × 13,007.80
  4. Step 4: Simplify right side
    13,526.20x = 263,919,156.54
  5. Step 5: Solve for x
    x = 263,919,156.54/13,526.20
  6. Step 6: Final answer
    x = 19,511.70

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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.