Home / 13,779.30-19,014.91-7,491.68

Finding the Fourth Proportional to 13,779.30, 19,014.91 and 7,491.68

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Solution

The fourth proportional to 13,779.30, 19,014.91 and 7,491.68 is: 10,338.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779.30 : 19,014.91 = 7,491.68 : x
  2. Step 2: Convert to fraction form
    13,779.30/19,014.91 = 7,491.68/x
  3. Step 3: Cross multiply
    13,779.30x = 19,014.91 × 7,491.68
  4. Step 4: Simplify right side
    13,779.30x = 142,453,620.95
  5. Step 5: Solve for x
    x = 142,453,620.95/13,779.30
  6. Step 6: Final answer
    x = 10,338.23

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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.