Home / 13,938.64-19,235.11-7,651.02

Finding the Fourth Proportional to 13,938.64, 19,235.11 and 7,651.02

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Solution

The fourth proportional to 13,938.64, 19,235.11 and 7,651.02 is: 10,558.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.64 : 19,235.11 = 7,651.02 : x
  2. Step 2: Convert to fraction form
    13,938.64/19,235.11 = 7,651.02/x
  3. Step 3: Cross multiply
    13,938.64x = 19,235.11 × 7,651.02
  4. Step 4: Simplify right side
    13,938.64x = 147,168,211.31
  5. Step 5: Solve for x
    x = 147,168,211.31/13,938.64
  6. Step 6: Final answer
    x = 10,558.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.