Home / 9,074.75-12,545.60-8,991.63

Finding the Fourth Proportional to 9,074.75, 12,545.60 and 8,991.63

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Solution

The fourth proportional to 9,074.75, 12,545.60 and 8,991.63 is: 12,430.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,074.75 : 12,545.60 = 8,991.63 : x
  2. Step 2: Convert to fraction form
    9,074.75/12,545.60 = 8,991.63/x
  3. Step 3: Cross multiply
    9,074.75x = 12,545.60 × 8,991.63
  4. Step 4: Simplify right side
    9,074.75x = 112,805,348.37
  5. Step 5: Solve for x
    x = 112,805,348.37/9,074.75
  6. Step 6: Final answer
    x = 12,430.69

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Half scale
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Double scale
Find fourth proportional to 9,075.75, 12,546.98 and 8,992.63
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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.