Home / 13,015.53-19,523.12-3,154.89

Finding the Fourth Proportional to 13,015.53, 19,523.12 and 3,154.89

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Solution

The fourth proportional to 13,015.53, 19,523.12 and 3,154.89 is: 4,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.53 : 19,523.12 = 3,154.89 : x
  2. Step 2: Convert to fraction form
    13,015.53/19,523.12 = 3,154.89/x
  3. Step 3: Cross multiply
    13,015.53x = 19,523.12 × 3,154.89
  4. Step 4: Simplify right side
    13,015.53x = 61,593,280.28
  5. Step 5: Solve for x
    x = 61,593,280.28/13,015.53
  6. Step 6: Final answer
    x = 4,732.29

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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.