Home / 8,347.32-11,519.01-4,809.78

Finding the Fourth Proportional to 8,347.32, 11,519.01 and 4,809.78

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Solution

The fourth proportional to 8,347.32, 11,519.01 and 4,809.78 is: 6,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.32 : 11,519.01 = 4,809.78 : x
  2. Step 2: Convert to fraction form
    8,347.32/11,519.01 = 4,809.78/x
  3. Step 3: Cross multiply
    8,347.32x = 11,519.01 × 4,809.78
  4. Step 4: Simplify right side
    8,347.32x = 55,403,903.92
  5. Step 5: Solve for x
    x = 55,403,903.92/8,347.32
  6. Step 6: Final answer
    x = 6,637.33

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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.