Home / 8,690.06-11,993.82-5,154.50

Finding the Fourth Proportional to 8,690.06, 11,993.82 and 5,154.50

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Solution

The fourth proportional to 8,690.06, 11,993.82 and 5,154.50 is: 7,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.06 : 11,993.82 = 5,154.50 : x
  2. Step 2: Convert to fraction form
    8,690.06/11,993.82 = 5,154.50/x
  3. Step 3: Cross multiply
    8,690.06x = 11,993.82 × 5,154.50
  4. Step 4: Simplify right side
    8,690.06x = 61,822,145.19
  5. Step 5: Solve for x
    x = 61,822,145.19/8,690.06
  6. Step 6: Final answer
    x = 7,114.12

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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.