Home / 9,290.26-12,821.66-5,312.15

Finding the Fourth Proportional to 9,290.26, 12,821.66 and 5,312.15

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Solution

The fourth proportional to 9,290.26, 12,821.66 and 5,312.15 is: 7,331.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290.26 : 12,821.66 = 5,312.15 : x
  2. Step 2: Convert to fraction form
    9,290.26/12,821.66 = 5,312.15/x
  3. Step 3: Cross multiply
    9,290.26x = 12,821.66 × 5,312.15
  4. Step 4: Simplify right side
    9,290.26x = 68,110,558.50
  5. Step 5: Solve for x
    x = 68,110,558.50/9,290.26
  6. Step 6: Final answer
    x = 7,331.39

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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.