Home / 12,666.39-19,007.75-6,827.07

Finding the Fourth Proportional to 12,666.39, 19,007.75 and 6,827.07

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Solution

The fourth proportional to 12,666.39, 19,007.75 and 6,827.07 is: 10,245.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.39 : 19,007.75 = 6,827.07 : x
  2. Step 2: Convert to fraction form
    12,666.39/19,007.75 = 6,827.07/x
  3. Step 3: Cross multiply
    12,666.39x = 19,007.75 × 6,827.07
  4. Step 4: Simplify right side
    12,666.39x = 129,767,205.66
  5. Step 5: Solve for x
    x = 129,767,205.66/12,666.39
  6. Step 6: Final answer
    x = 10,245.00

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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.