Home / 10,120.57-15,186.32-4,926.45

Finding the Fourth Proportional to 10,120.57, 15,186.32 and 4,926.45

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Solution

The fourth proportional to 10,120.57, 15,186.32 and 4,926.45 is: 7,392.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.57 : 15,186.32 = 4,926.45 : x
  2. Step 2: Convert to fraction form
    10,120.57/15,186.32 = 4,926.45/x
  3. Step 3: Cross multiply
    10,120.57x = 15,186.32 × 4,926.45
  4. Step 4: Simplify right side
    10,120.57x = 74,814,589.60
  5. Step 5: Solve for x
    x = 74,814,589.60/10,120.57
  6. Step 6: Final answer
    x = 7,392.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.