Home / 19,141.38-28,720.29-6,654.60

Finding the Fourth Proportional to 19,141.38, 28,720.29 and 6,654.60

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Solution

The fourth proportional to 19,141.38, 28,720.29 and 6,654.60 is: 9,984.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,141.38 : 28,720.29 = 6,654.60 : x
  2. Step 2: Convert to fraction form
    19,141.38/28,720.29 = 6,654.60/x
  3. Step 3: Cross multiply
    19,141.38x = 28,720.29 × 6,654.60
  4. Step 4: Simplify right side
    19,141.38x = 191,122,041.83
  5. Step 5: Solve for x
    x = 191,122,041.83/19,141.38
  6. Step 6: Final answer
    x = 9,984.76

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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.