Home / 19,127.80-28,683.06-6,816.12

Finding the Fourth Proportional to 19,127.80, 28,683.06 and 6,816.12

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Solution

The fourth proportional to 19,127.80, 28,683.06 and 6,816.12 is: 10,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.80 : 28,683.06 = 6,816.12 : x
  2. Step 2: Convert to fraction form
    19,127.80/28,683.06 = 6,816.12/x
  3. Step 3: Cross multiply
    19,127.80x = 28,683.06 × 6,816.12
  4. Step 4: Simplify right side
    19,127.80x = 195,507,178.93
  5. Step 5: Solve for x
    x = 195,507,178.93/19,127.80
  6. Step 6: Final answer
    x = 10,221.10

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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.