Home / 13,535.46-20,288.61-6,505.47

Finding the Fourth Proportional to 13,535.46, 20,288.61 and 6,505.47

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Solution

The fourth proportional to 13,535.46, 20,288.61 and 6,505.47 is: 9,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.46 : 20,288.61 = 6,505.47 : x
  2. Step 2: Convert to fraction form
    13,535.46/20,288.61 = 6,505.47/x
  3. Step 3: Cross multiply
    13,535.46x = 20,288.61 × 6,505.47
  4. Step 4: Simplify right side
    13,535.46x = 131,986,943.70
  5. Step 5: Solve for x
    x = 131,986,943.70/13,535.46
  6. Step 6: Final answer
    x = 9,751.20

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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.