Home / 13,291.96-19,925.16-4,969.68

Finding the Fourth Proportional to 13,291.96, 19,925.16 and 4,969.68

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Solution

The fourth proportional to 13,291.96, 19,925.16 and 4,969.68 is: 7,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.96 : 19,925.16 = 4,969.68 : x
  2. Step 2: Convert to fraction form
    13,291.96/19,925.16 = 4,969.68/x
  3. Step 3: Cross multiply
    13,291.96x = 19,925.16 × 4,969.68
  4. Step 4: Simplify right side
    13,291.96x = 99,021,669.15
  5. Step 5: Solve for x
    x = 99,021,669.15/13,291.96
  6. Step 6: Final answer
    x = 7,449.74

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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.