Home / 13,816.02-20,730.15-7,240.64

Finding the Fourth Proportional to 13,816.02, 20,730.15 and 7,240.64

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Solution

The fourth proportional to 13,816.02, 20,730.15 and 7,240.64 is: 10,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.02 : 20,730.15 = 7,240.64 : x
  2. Step 2: Convert to fraction form
    13,816.02/20,730.15 = 7,240.64/x
  3. Step 3: Cross multiply
    13,816.02x = 20,730.15 × 7,240.64
  4. Step 4: Simplify right side
    13,816.02x = 150,099,449.65
  5. Step 5: Solve for x
    x = 150,099,449.65/13,816.02
  6. Step 6: Final answer
    x = 10,864.16

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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.