Home / 12,690.46-19,035.69-3,925.45

Finding the Fourth Proportional to 12,690.46, 19,035.69 and 3,925.45

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Solution

The fourth proportional to 12,690.46, 19,035.69 and 3,925.45 is: 5,888.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.46 : 19,035.69 = 3,925.45 : x
  2. Step 2: Convert to fraction form
    12,690.46/19,035.69 = 3,925.45/x
  3. Step 3: Cross multiply
    12,690.46x = 19,035.69 × 3,925.45
  4. Step 4: Simplify right side
    12,690.46x = 74,723,649.31
  5. Step 5: Solve for x
    x = 74,723,649.31/12,690.46
  6. Step 6: Final answer
    x = 5,888.18

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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.