Home / 7,809.10-10,776.42-4,783.75

Finding the Fourth Proportional to 7,809.10, 10,776.42 and 4,783.75

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Solution

The fourth proportional to 7,809.10, 10,776.42 and 4,783.75 is: 6,601.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.10 : 10,776.42 = 4,783.75 : x
  2. Step 2: Convert to fraction form
    7,809.10/10,776.42 = 4,783.75/x
  3. Step 3: Cross multiply
    7,809.10x = 10,776.42 × 4,783.75
  4. Step 4: Simplify right side
    7,809.10x = 51,551,672.23
  5. Step 5: Solve for x
    x = 51,551,672.23/7,809.10
  6. Step 6: Final answer
    x = 6,601.49

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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.