Home / 13,511.95-20,262.76-6,490.01

Finding the Fourth Proportional to 13,511.95, 20,262.76 and 6,490.01

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Solution

The fourth proportional to 13,511.95, 20,262.76 and 6,490.01 is: 9,732.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.95 : 20,262.76 = 6,490.01 : x
  2. Step 2: Convert to fraction form
    13,511.95/20,262.76 = 6,490.01/x
  3. Step 3: Cross multiply
    13,511.95x = 20,262.76 × 6,490.01
  4. Step 4: Simplify right side
    13,511.95x = 131,505,515.03
  5. Step 5: Solve for x
    x = 131,505,515.03/13,511.95
  6. Step 6: Final answer
    x = 9,732.53

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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.