Home / 13,038.92-19,558.38-3,178.12

Finding the Fourth Proportional to 13,038.92, 19,558.38 and 3,178.12

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Solution

The fourth proportional to 13,038.92, 19,558.38 and 3,178.12 is: 4,767.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.92 : 19,558.38 = 3,178.12 : x
  2. Step 2: Convert to fraction form
    13,038.92/19,558.38 = 3,178.12/x
  3. Step 3: Cross multiply
    13,038.92x = 19,558.38 × 3,178.12
  4. Step 4: Simplify right side
    13,038.92x = 62,158,878.65
  5. Step 5: Solve for x
    x = 62,158,878.65/13,038.92
  6. Step 6: Final answer
    x = 4,767.18

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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.