Home / 13,015.84-19,523.58-3,155.21

Finding the Fourth Proportional to 13,015.84, 19,523.58 and 3,155.21

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Solution

The fourth proportional to 13,015.84, 19,523.58 and 3,155.21 is: 4,732.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.84 : 19,523.58 = 3,155.21 : x
  2. Step 2: Convert to fraction form
    13,015.84/19,523.58 = 3,155.21/x
  3. Step 3: Cross multiply
    13,015.84x = 19,523.58 × 3,155.21
  4. Step 4: Simplify right side
    13,015.84x = 61,600,897.23
  5. Step 5: Solve for x
    x = 61,600,897.23/13,015.84
  6. Step 6: Final answer
    x = 4,732.77

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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.