Home / 18,970.97-28,450.31-6,317.35

Finding the Fourth Proportional to 18,970.97, 28,450.31 and 6,317.35

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Solution

The fourth proportional to 18,970.97, 28,450.31 and 6,317.35 is: 9,473.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.97 : 28,450.31 = 6,317.35 : x
  2. Step 2: Convert to fraction form
    18,970.97/28,450.31 = 6,317.35/x
  3. Step 3: Cross multiply
    18,970.97x = 28,450.31 × 6,317.35
  4. Step 4: Simplify right side
    18,970.97x = 179,730,463.17
  5. Step 5: Solve for x
    x = 179,730,463.17/18,970.97
  6. Step 6: Final answer
    x = 9,473.98

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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.