Home / 11,895.80-16,412.48-6,859.34

Finding the Fourth Proportional to 11,895.80, 16,412.48 and 6,859.34

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Solution

The fourth proportional to 11,895.80, 16,412.48 and 6,859.34 is: 9,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,895.80 : 16,412.48 = 6,859.34 : x
  2. Step 2: Convert to fraction form
    11,895.80/16,412.48 = 6,859.34/x
  3. Step 3: Cross multiply
    11,895.80x = 16,412.48 × 6,859.34
  4. Step 4: Simplify right side
    11,895.80x = 112,578,664.20
  5. Step 5: Solve for x
    x = 112,578,664.20/11,895.80
  6. Step 6: Final answer
    x = 9,463.74

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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.