Home / 7,690.89-11,494.18-5,615.26

Finding the Fourth Proportional to 7,690.89, 11,494.18 and 5,615.26

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Solution

The fourth proportional to 7,690.89, 11,494.18 and 5,615.26 is: 8,392.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,690.89 : 11,494.18 = 5,615.26 : x
  2. Step 2: Convert to fraction form
    7,690.89/11,494.18 = 5,615.26/x
  3. Step 3: Cross multiply
    7,690.89x = 11,494.18 × 5,615.26
  4. Step 4: Simplify right side
    7,690.89x = 64,542,809.19
  5. Step 5: Solve for x
    x = 64,542,809.19/7,690.89
  6. Step 6: Final answer
    x = 8,392.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.