Home / 12,690.24-19,036.62-4,369.15

Finding the Fourth Proportional to 12,690.24, 19,036.62 and 4,369.15

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Solution

The fourth proportional to 12,690.24, 19,036.62 and 4,369.15 is: 6,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.24 : 19,036.62 = 4,369.15 : x
  2. Step 2: Convert to fraction form
    12,690.24/19,036.62 = 4,369.15/x
  3. Step 3: Cross multiply
    12,690.24x = 19,036.62 × 4,369.15
  4. Step 4: Simplify right side
    12,690.24x = 83,173,848.27
  5. Step 5: Solve for x
    x = 83,173,848.27/12,690.24
  6. Step 6: Final answer
    x = 6,554.16

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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.