Home / 8,030.85-11,083.99-5,378.65

Finding the Fourth Proportional to 8,030.85, 11,083.99 and 5,378.65

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Solution

The fourth proportional to 8,030.85, 11,083.99 and 5,378.65 is: 7,423.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,030.85 : 11,083.99 = 5,378.65 : x
  2. Step 2: Convert to fraction form
    8,030.85/11,083.99 = 5,378.65/x
  3. Step 3: Cross multiply
    8,030.85x = 11,083.99 × 5,378.65
  4. Step 4: Simplify right side
    8,030.85x = 59,616,934.09
  5. Step 5: Solve for x
    x = 59,616,934.09/8,030.85
  6. Step 6: Final answer
    x = 7,423.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.