Home / 13,003.79-19,508.61-4,119.65

Finding the Fourth Proportional to 13,003.79, 19,508.61 and 4,119.65

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Solution

The fourth proportional to 13,003.79, 19,508.61 and 4,119.65 is: 6,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.79 : 19,508.61 = 4,119.65 : x
  2. Step 2: Convert to fraction form
    13,003.79/19,508.61 = 4,119.65/x
  3. Step 3: Cross multiply
    13,003.79x = 19,508.61 × 4,119.65
  4. Step 4: Simplify right side
    13,003.79x = 80,368,547.64
  5. Step 5: Solve for x
    x = 80,368,547.64/13,003.79
  6. Step 6: Final answer
    x = 6,180.40

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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.