Home / 9,021.08-13,533.10-2,780.96

Finding the Fourth Proportional to 9,021.08, 13,533.10 and 2,780.96

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Solution

The fourth proportional to 9,021.08, 13,533.10 and 2,780.96 is: 4,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.08 : 13,533.10 = 2,780.96 : x
  2. Step 2: Convert to fraction form
    9,021.08/13,533.10 = 2,780.96/x
  3. Step 3: Cross multiply
    9,021.08x = 13,533.10 × 2,780.96
  4. Step 4: Simplify right side
    9,021.08x = 37,634,935.16
  5. Step 5: Solve for x
    x = 37,634,935.16/9,021.08
  6. Step 6: Final answer
    x = 4,171.89

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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.