Home / 12,957.06-19,435.14-4,191.75

Finding the Fourth Proportional to 12,957.06, 19,435.14 and 4,191.75

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Solution

The fourth proportional to 12,957.06, 19,435.14 and 4,191.75 is: 6,287.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,957.06 : 19,435.14 = 4,191.75 : x
  2. Step 2: Convert to fraction form
    12,957.06/19,435.14 = 4,191.75/x
  3. Step 3: Cross multiply
    12,957.06x = 19,435.14 × 4,191.75
  4. Step 4: Simplify right side
    12,957.06x = 81,467,248.10
  5. Step 5: Solve for x
    x = 81,467,248.10/12,957.06
  6. Step 6: Final answer
    x = 6,287.48

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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.