Home / 13,805.07-19,051.40-7,517.85

Finding the Fourth Proportional to 13,805.07, 19,051.40 and 7,517.85

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Solution

The fourth proportional to 13,805.07, 19,051.40 and 7,517.85 is: 10,374.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.07 : 19,051.40 = 7,517.85 : x
  2. Step 2: Convert to fraction form
    13,805.07/19,051.40 = 7,517.85/x
  3. Step 3: Cross multiply
    13,805.07x = 19,051.40 × 7,517.85
  4. Step 4: Simplify right side
    13,805.07x = 143,225,529.90
  5. Step 5: Solve for x
    x = 143,225,529.90/13,805.07
  6. Step 6: Final answer
    x = 10,374.85

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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.