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Finding the Fourth Proportional to 11,804.48, 17,693.74 and 10,421.21

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Solution

The fourth proportional to 11,804.48, 17,693.74 and 10,421.21 is: 15,620.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,804.48 : 17,693.74 = 10,421.21 : x
  2. Step 2: Convert to fraction form
    11,804.48/17,693.74 = 10,421.21/x
  3. Step 3: Cross multiply
    11,804.48x = 17,693.74 × 10,421.21
  4. Step 4: Simplify right side
    11,804.48x = 184,390,137.96
  5. Step 5: Solve for x
    x = 184,390,137.96/11,804.48
  6. Step 6: Final answer
    x = 15,620.35

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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.