Home / 7,830.18-10,805.74-4,293.32

Finding the Fourth Proportional to 7,830.18, 10,805.74 and 4,293.32

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Solution

The fourth proportional to 7,830.18, 10,805.74 and 4,293.32 is: 5,924.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.18 : 10,805.74 = 4,293.32 : x
  2. Step 2: Convert to fraction form
    7,830.18/10,805.74 = 4,293.32/x
  3. Step 3: Cross multiply
    7,830.18x = 10,805.74 × 4,293.32
  4. Step 4: Simplify right side
    7,830.18x = 46,392,499.66
  5. Step 5: Solve for x
    x = 46,392,499.66/7,830.18
  6. Step 6: Final answer
    x = 5,924.83

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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.