Home / 13,107.36-19,643.52-4,779.56

Finding the Fourth Proportional to 13,107.36, 19,643.52 and 4,779.56

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Solution

The fourth proportional to 13,107.36, 19,643.52 and 4,779.56 is: 7,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.36 : 19,643.52 = 4,779.56 : x
  2. Step 2: Convert to fraction form
    13,107.36/19,643.52 = 4,779.56/x
  3. Step 3: Cross multiply
    13,107.36x = 19,643.52 × 4,779.56
  4. Step 4: Simplify right side
    13,107.36x = 93,887,382.45
  5. Step 5: Solve for x
    x = 93,887,382.45/13,107.36
  6. Step 6: Final answer
    x = 7,162.95

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1.5x scale

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.