Home / 7,905.90-10,911.33-4,763.82

Finding the Fourth Proportional to 7,905.90, 10,911.33 and 4,763.82

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Solution

The fourth proportional to 7,905.90, 10,911.33 and 4,763.82 is: 6,574.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,905.90 : 10,911.33 = 4,763.82 : x
  2. Step 2: Convert to fraction form
    7,905.90/10,911.33 = 4,763.82/x
  3. Step 3: Cross multiply
    7,905.90x = 10,911.33 × 4,763.82
  4. Step 4: Simplify right side
    7,905.90x = 51,979,612.08
  5. Step 5: Solve for x
    x = 51,979,612.08/7,905.90
  6. Step 6: Final answer
    x = 6,574.79

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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.