Home / 13,051.85-19,580.30-5,261.45

Finding the Fourth Proportional to 13,051.85, 19,580.30 and 5,261.45

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Solution

The fourth proportional to 13,051.85, 19,580.30 and 5,261.45 is: 7,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,051.85 : 19,580.30 = 5,261.45 : x
  2. Step 2: Convert to fraction form
    13,051.85/19,580.30 = 5,261.45/x
  3. Step 3: Cross multiply
    13,051.85x = 19,580.30 × 5,261.45
  4. Step 4: Simplify right side
    13,051.85x = 103,020,743.13
  5. Step 5: Solve for x
    x = 103,020,743.13/13,051.85
  6. Step 6: Final answer
    x = 7,893.19

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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.