Home / 7,847.40-10,828.98-4,309.95

Finding the Fourth Proportional to 7,847.40, 10,828.98 and 4,309.95

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Solution

The fourth proportional to 7,847.40, 10,828.98 and 4,309.95 is: 5,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.40 : 10,828.98 = 4,309.95 : x
  2. Step 2: Convert to fraction form
    7,847.40/10,828.98 = 4,309.95/x
  3. Step 3: Cross multiply
    7,847.40x = 10,828.98 × 4,309.95
  4. Step 4: Simplify right side
    7,847.40x = 46,672,362.35
  5. Step 5: Solve for x
    x = 46,672,362.35/7,847.40
  6. Step 6: Final answer
    x = 5,947.49

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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.