Home / 7,112.14-9,816.51-4,319.98

Finding the Fourth Proportional to 7,112.14, 9,816.51 and 4,319.98

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Solution

The fourth proportional to 7,112.14, 9,816.51 and 4,319.98 is: 5,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.14 : 9,816.51 = 4,319.98 : x
  2. Step 2: Convert to fraction form
    7,112.14/9,816.51 = 4,319.98/x
  3. Step 3: Cross multiply
    7,112.14x = 9,816.51 × 4,319.98
  4. Step 4: Simplify right side
    7,112.14x = 42,407,126.87
  5. Step 5: Solve for x
    x = 42,407,126.87/7,112.14
  6. Step 6: Final answer
    x = 5,962.64

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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.