Home / 7,830.12-10,805.56-4,293.36

Finding the Fourth Proportional to 7,830.12, 10,805.56 and 4,293.36

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Solution

The fourth proportional to 7,830.12, 10,805.56 and 4,293.36 is: 5,924.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,830.12 : 10,805.56 = 4,293.36 : x
  2. Step 2: Convert to fraction form
    7,830.12/10,805.56 = 4,293.36/x
  3. Step 3: Cross multiply
    7,830.12x = 10,805.56 × 4,293.36
  4. Step 4: Simplify right side
    7,830.12x = 46,392,159.08
  5. Step 5: Solve for x
    x = 46,392,159.08/7,830.12
  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.