Home / 19,140.88-28,719.54-6,654.10

Finding the Fourth Proportional to 19,140.88, 28,719.54 and 6,654.10

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Solution

The fourth proportional to 19,140.88, 28,719.54 and 6,654.10 is: 9,984.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,140.88 : 28,719.54 = 6,654.10 : x
  2. Step 2: Convert to fraction form
    19,140.88/28,719.54 = 6,654.10/x
  3. Step 3: Cross multiply
    19,140.88x = 28,719.54 × 6,654.10
  4. Step 4: Simplify right side
    19,140.88x = 191,102,691.11
  5. Step 5: Solve for x
    x = 191,102,691.11/19,140.88
  6. Step 6: Final answer
    x = 9,984.01

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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.