Home / 13,015.81-19,523.54-3,155.18

Finding the Fourth Proportional to 13,015.81, 19,523.54 and 3,155.18

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Solution

The fourth proportional to 13,015.81, 19,523.54 and 3,155.18 is: 4,732.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.81 : 19,523.54 = 3,155.18 : x
  2. Step 2: Convert to fraction form
    13,015.81/19,523.54 = 3,155.18/x
  3. Step 3: Cross multiply
    13,015.81x = 19,523.54 × 3,155.18
  4. Step 4: Simplify right side
    13,015.81x = 61,600,169.54
  5. Step 5: Solve for x
    x = 61,600,169.54/13,015.81
  6. Step 6: Final answer
    x = 4,732.72

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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.