Home / 13,298.93-19,948.98-3,938.57

Finding the Fourth Proportional to 13,298.93, 19,948.98 and 3,938.57

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Solution

The fourth proportional to 13,298.93, 19,948.98 and 3,938.57 is: 5,908.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.93 : 19,948.98 = 3,938.57 : x
  2. Step 2: Convert to fraction form
    13,298.93/19,948.98 = 3,938.57/x
  3. Step 3: Cross multiply
    13,298.93x = 19,948.98 × 3,938.57
  4. Step 4: Simplify right side
    13,298.93x = 78,570,454.16
  5. Step 5: Solve for x
    x = 78,570,454.16/13,298.93
  6. Step 6: Final answer
    x = 5,908.03

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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.