Home / 13,827.89-19,082.94-7,779.18

Finding the Fourth Proportional to 13,827.89, 19,082.94 and 7,779.18

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Solution

The fourth proportional to 13,827.89, 19,082.94 and 7,779.18 is: 10,735.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.89 : 19,082.94 = 7,779.18 : x
  2. Step 2: Convert to fraction form
    13,827.89/19,082.94 = 7,779.18/x
  3. Step 3: Cross multiply
    13,827.89x = 19,082.94 × 7,779.18
  4. Step 4: Simplify right side
    13,827.89x = 148,449,625.19
  5. Step 5: Solve for x
    x = 148,449,625.19/13,827.89
  6. Step 6: Final answer
    x = 10,735.52

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1.5x scale

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.