Home / 13,107.17-19,643.23-4,779.35

Finding the Fourth Proportional to 13,107.17, 19,643.23 and 4,779.35

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Solution

The fourth proportional to 13,107.17, 19,643.23 and 4,779.35 is: 7,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.17 : 19,643.23 = 4,779.35 : x
  2. Step 2: Convert to fraction form
    13,107.17/19,643.23 = 4,779.35/x
  3. Step 3: Cross multiply
    13,107.17x = 19,643.23 × 4,779.35
  4. Step 4: Simplify right side
    13,107.17x = 93,881,976.66
  5. Step 5: Solve for x
    x = 93,881,976.66/13,107.17
  6. Step 6: Final answer
    x = 7,162.64

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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.