Home / 13,188.04-19,782.14-5,396.85

Finding the Fourth Proportional to 13,188.04, 19,782.14 and 5,396.85

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Solution

The fourth proportional to 13,188.04, 19,782.14 and 5,396.85 is: 8,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.04 : 19,782.14 = 5,396.85 : x
  2. Step 2: Convert to fraction form
    13,188.04/19,782.14 = 5,396.85/x
  3. Step 3: Cross multiply
    13,188.04x = 19,782.14 × 5,396.85
  4. Step 4: Simplify right side
    13,188.04x = 106,761,242.26
  5. Step 5: Solve for x
    x = 106,761,242.26/13,188.04
  6. Step 6: Final answer
    x = 8,095.31

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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.