Home / 10,809.32-16,215.92-4,889.00

Finding the Fourth Proportional to 10,809.32, 16,215.92 and 4,889.00

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Solution

The fourth proportional to 10,809.32, 16,215.92 and 4,889.00 is: 7,334.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.32 : 16,215.92 = 4,889.00 : x
  2. Step 2: Convert to fraction form
    10,809.32/16,215.92 = 4,889.00/x
  3. Step 3: Cross multiply
    10,809.32x = 16,215.92 × 4,889.00
  4. Step 4: Simplify right side
    10,809.32x = 79,279,685.13
  5. Step 5: Solve for x
    x = 79,279,685.13/10,809.32
  6. Step 6: Final answer
    x = 7,334.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.