Home / 6,911.68-10,368.60-3,988.48

Finding the Fourth Proportional to 6,911.68, 10,368.60 and 3,988.48

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Solution

The fourth proportional to 6,911.68, 10,368.60 and 3,988.48 is: 5,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,911.68 : 10,368.60 = 3,988.48 : x
  2. Step 2: Convert to fraction form
    6,911.68/10,368.60 = 3,988.48/x
  3. Step 3: Cross multiply
    6,911.68x = 10,368.60 × 3,988.48
  4. Step 4: Simplify right side
    6,911.68x = 41,354,953.73
  5. Step 5: Solve for x
    x = 41,354,953.73/6,911.68
  6. Step 6: Final answer
    x = 5,983.34

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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.