Home / 7,117.48-9,820.74-4,286.44

Finding the Fourth Proportional to 7,117.48, 9,820.74 and 4,286.44

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Solution

The fourth proportional to 7,117.48, 9,820.74 and 4,286.44 is: 5,914.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.48 : 9,820.74 = 4,286.44 : x
  2. Step 2: Convert to fraction form
    7,117.48/9,820.74 = 4,286.44/x
  3. Step 3: Cross multiply
    7,117.48x = 9,820.74 × 4,286.44
  4. Step 4: Simplify right side
    7,117.48x = 42,096,012.77
  5. Step 5: Solve for x
    x = 42,096,012.77/7,117.48
  6. Step 6: Final answer
    x = 5,914.45

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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.