Home / 8,430.71-11,634.41-4,653.80

Finding the Fourth Proportional to 8,430.71, 11,634.41 and 4,653.80

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Solution

The fourth proportional to 8,430.71, 11,634.41 and 4,653.80 is: 6,422.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,430.71 : 11,634.41 = 4,653.80 : x
  2. Step 2: Convert to fraction form
    8,430.71/11,634.41 = 4,653.80/x
  3. Step 3: Cross multiply
    8,430.71x = 11,634.41 × 4,653.80
  4. Step 4: Simplify right side
    8,430.71x = 54,144,257.98
  5. Step 5: Solve for x
    x = 54,144,257.98/8,430.71
  6. Step 6: Final answer
    x = 6,422.27

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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.