Home / 6,988.26-9,643.78-4,193.76

Finding the Fourth Proportional to 6,988.26, 9,643.78 and 4,193.76

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Solution

The fourth proportional to 6,988.26, 9,643.78 and 4,193.76 is: 5,787.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,988.26 : 9,643.78 = 4,193.76 : x
  2. Step 2: Convert to fraction form
    6,988.26/9,643.78 = 4,193.76/x
  3. Step 3: Cross multiply
    6,988.26x = 9,643.78 × 4,193.76
  4. Step 4: Simplify right side
    6,988.26x = 40,443,698.81
  5. Step 5: Solve for x
    x = 40,443,698.81/6,988.26
  6. Step 6: Final answer
    x = 5,787.38

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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.