Home / 13,325.84-19,981.41-5,426.33

Finding the Fourth Proportional to 13,325.84, 19,981.41 and 5,426.33

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Solution

The fourth proportional to 13,325.84, 19,981.41 and 5,426.33 is: 8,136.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.84 : 19,981.41 = 5,426.33 : x
  2. Step 2: Convert to fraction form
    13,325.84/19,981.41 = 5,426.33/x
  3. Step 3: Cross multiply
    13,325.84x = 19,981.41 × 5,426.33
  4. Step 4: Simplify right side
    13,325.84x = 108,425,724.53
  5. Step 5: Solve for x
    x = 108,425,724.53/13,325.84
  6. Step 6: Final answer
    x = 8,136.50

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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.