Home / 7,868.24-11,802.40-3,188.34

Finding the Fourth Proportional to 7,868.24, 11,802.40 and 3,188.34

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Solution

The fourth proportional to 7,868.24, 11,802.40 and 3,188.34 is: 4,782.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,868.24 : 11,802.40 = 3,188.34 : x
  2. Step 2: Convert to fraction form
    7,868.24/11,802.40 = 3,188.34/x
  3. Step 3: Cross multiply
    7,868.24x = 11,802.40 × 3,188.34
  4. Step 4: Simplify right side
    7,868.24x = 37,630,031.82
  5. Step 5: Solve for x
    x = 37,630,031.82/7,868.24
  6. Step 6: Final answer
    x = 4,782.52

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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.