Home / 19,172.81-28,727.31-6,685.95

Finding the Fourth Proportional to 19,172.81, 28,727.31 and 6,685.95

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Solution

The fourth proportional to 19,172.81, 28,727.31 and 6,685.95 is: 10,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.81 : 28,727.31 = 6,685.95 : x
  2. Step 2: Convert to fraction form
    19,172.81/28,727.31 = 6,685.95/x
  3. Step 3: Cross multiply
    19,172.81x = 28,727.31 × 6,685.95
  4. Step 4: Simplify right side
    19,172.81x = 192,069,358.29
  5. Step 5: Solve for x
    x = 192,069,358.29/19,172.81
  6. Step 6: Final answer
    x = 10,017.80

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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.