Home / 7,857.17-10,842.56-4,320.37

Finding the Fourth Proportional to 7,857.17, 10,842.56 and 4,320.37

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Solution

The fourth proportional to 7,857.17, 10,842.56 and 4,320.37 is: 5,961.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,857.17 : 10,842.56 = 4,320.37 : x
  2. Step 2: Convert to fraction form
    7,857.17/10,842.56 = 4,320.37/x
  3. Step 3: Cross multiply
    7,857.17x = 10,842.56 × 4,320.37
  4. Step 4: Simplify right side
    7,857.17x = 46,843,879.10
  5. Step 5: Solve for x
    x = 46,843,879.10/7,857.17
  6. Step 6: Final answer
    x = 5,961.93

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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.