Home / 12,947.58-19,416.96-4,180.32

Finding the Fourth Proportional to 12,947.58, 19,416.96 and 4,180.32

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Solution

The fourth proportional to 12,947.58, 19,416.96 and 4,180.32 is: 6,269.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.58 : 19,416.96 = 4,180.32 : x
  2. Step 2: Convert to fraction form
    12,947.58/19,416.96 = 4,180.32/x
  3. Step 3: Cross multiply
    12,947.58x = 19,416.96 × 4,180.32
  4. Step 4: Simplify right side
    12,947.58x = 81,169,106.23
  5. Step 5: Solve for x
    x = 81,169,106.23/12,947.58
  6. Step 6: Final answer
    x = 6,269.06

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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.