Home / 10,852.88-14,979.66-6,139.96

Finding the Fourth Proportional to 10,852.88, 14,979.66 and 6,139.96

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Solution

The fourth proportional to 10,852.88, 14,979.66 and 6,139.96 is: 8,474.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,852.88 : 14,979.66 = 6,139.96 : x
  2. Step 2: Convert to fraction form
    10,852.88/14,979.66 = 6,139.96/x
  3. Step 3: Cross multiply
    10,852.88x = 14,979.66 × 6,139.96
  4. Step 4: Simplify right side
    10,852.88x = 91,974,513.21
  5. Step 5: Solve for x
    x = 91,974,513.21/10,852.88
  6. Step 6: Final answer
    x = 8,474.66

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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.