Home / 19,090.93-28,632.63-6,439.44

Finding the Fourth Proportional to 19,090.93, 28,632.63 and 6,439.44

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Solution

The fourth proportional to 19,090.93, 28,632.63 and 6,439.44 is: 9,657.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.93 : 28,632.63 = 6,439.44 : x
  2. Step 2: Convert to fraction form
    19,090.93/28,632.63 = 6,439.44/x
  3. Step 3: Cross multiply
    19,090.93x = 28,632.63 × 6,439.44
  4. Step 4: Simplify right side
    19,090.93x = 184,378,102.93
  5. Step 5: Solve for x
    x = 184,378,102.93/19,090.93
  6. Step 6: Final answer
    x = 9,657.89

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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.