Home / 13,779.37-19,015.53-7,491.73

Finding the Fourth Proportional to 13,779.37, 19,015.53 and 7,491.73

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Solution

The fourth proportional to 13,779.37, 19,015.53 and 7,491.73 is: 10,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.37 : 19,015.53 = 7,491.73 : x
  2. Step 2: Convert to fraction form
    13,779.37/19,015.53 = 7,491.73/x
  3. Step 3: Cross multiply
    13,779.37x = 19,015.53 × 7,491.73
  4. Step 4: Simplify right side
    13,779.37x = 142,459,216.57
  5. Step 5: Solve for x
    x = 142,459,216.57/13,779.37
  6. Step 6: Final answer
    x = 10,338.59

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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.