Home / 12,690.63-19,036.19-3,925.53

Finding the Fourth Proportional to 12,690.63, 19,036.19 and 3,925.53

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Solution

The fourth proportional to 12,690.63, 19,036.19 and 3,925.53 is: 5,888.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.63 : 19,036.19 = 3,925.53 : x
  2. Step 2: Convert to fraction form
    12,690.63/19,036.19 = 3,925.53/x
  3. Step 3: Cross multiply
    12,690.63x = 19,036.19 × 3,925.53
  4. Step 4: Simplify right side
    12,690.63x = 74,727,144.74
  5. Step 5: Solve for x
    x = 74,727,144.74/12,690.63
  6. Step 6: Final answer
    x = 5,888.37

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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.