Home / 13,316.16-19,973.94-3,455.40

Finding the Fourth Proportional to 13,316.16, 19,973.94 and 3,455.40

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Solution

The fourth proportional to 13,316.16, 19,973.94 and 3,455.40 is: 5,183.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.16 : 19,973.94 = 3,455.40 : x
  2. Step 2: Convert to fraction form
    13,316.16/19,973.94 = 3,455.40/x
  3. Step 3: Cross multiply
    13,316.16x = 19,973.94 × 3,455.40
  4. Step 4: Simplify right side
    13,316.16x = 69,017,952.28
  5. Step 5: Solve for x
    x = 69,017,952.28/13,316.16
  6. Step 6: Final answer
    x = 5,183.02

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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.