Home / 19,171.96-28,762.80-7,325.74

Finding the Fourth Proportional to 19,171.96, 28,762.80 and 7,325.74

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Solution

The fourth proportional to 19,171.96, 28,762.80 and 7,325.74 is: 10,990.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,171.96 : 28,762.80 = 7,325.74 : x
  2. Step 2: Convert to fraction form
    19,171.96/28,762.80 = 7,325.74/x
  3. Step 3: Cross multiply
    19,171.96x = 28,762.80 × 7,325.74
  4. Step 4: Simplify right side
    19,171.96x = 210,708,794.47
  5. Step 5: Solve for x
    x = 210,708,794.47/19,171.96
  6. Step 6: Final answer
    x = 10,990.47

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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.