Home / 12,980.16-19,474.38-4,095.18

Finding the Fourth Proportional to 12,980.16, 19,474.38 and 4,095.18

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Solution

The fourth proportional to 12,980.16, 19,474.38 and 4,095.18 is: 6,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,980.16 : 19,474.38 = 4,095.18 : x
  2. Step 2: Convert to fraction form
    12,980.16/19,474.38 = 4,095.18/x
  3. Step 3: Cross multiply
    12,980.16x = 19,474.38 × 4,095.18
  4. Step 4: Simplify right side
    12,980.16x = 79,751,091.49
  5. Step 5: Solve for x
    x = 79,751,091.49/12,980.16
  6. Step 6: Final answer
    x = 6,144.08

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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.