Home / 7,140.35-9,840.69-5,873.31

Finding the Fourth Proportional to 7,140.35, 9,840.69 and 5,873.31

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Solution

The fourth proportional to 7,140.35, 9,840.69 and 5,873.31 is: 8,094.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.35 : 9,840.69 = 5,873.31 : x
  2. Step 2: Convert to fraction form
    7,140.35/9,840.69 = 5,873.31/x
  3. Step 3: Cross multiply
    7,140.35x = 9,840.69 × 5,873.31
  4. Step 4: Simplify right side
    7,140.35x = 57,797,422.98
  5. Step 5: Solve for x
    x = 57,797,422.98/7,140.35
  6. Step 6: Final answer
    x = 8,094.48

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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.