Home / 7,397.90-10,213.30-4,879.07

Finding the Fourth Proportional to 7,397.90, 10,213.30 and 4,879.07

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Solution

The fourth proportional to 7,397.90, 10,213.30 and 4,879.07 is: 6,735.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,397.90 : 10,213.30 = 4,879.07 : x
  2. Step 2: Convert to fraction form
    7,397.90/10,213.30 = 4,879.07/x
  3. Step 3: Cross multiply
    7,397.90x = 10,213.30 × 4,879.07
  4. Step 4: Simplify right side
    7,397.90x = 49,831,405.63
  5. Step 5: Solve for x
    x = 49,831,405.63/7,397.90
  6. Step 6: Final answer
    x = 6,735.89

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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.