Home / 12,685.84-19,028.19-4,365.90

Finding the Fourth Proportional to 12,685.84, 19,028.19 and 4,365.90

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Solution

The fourth proportional to 12,685.84, 19,028.19 and 4,365.90 is: 6,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.84 : 19,028.19 = 4,365.90 : x
  2. Step 2: Convert to fraction form
    12,685.84/19,028.19 = 4,365.90/x
  3. Step 3: Cross multiply
    12,685.84x = 19,028.19 × 4,365.90
  4. Step 4: Simplify right side
    12,685.84x = 83,075,178.81
  5. Step 5: Solve for x
    x = 83,075,178.81/12,685.84
  6. Step 6: Final answer
    x = 6,548.65

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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.