Home / 12,663.65-17,476.88-6,999.50

Finding the Fourth Proportional to 12,663.65, 17,476.88 and 6,999.50

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Solution

The fourth proportional to 12,663.65, 17,476.88 and 6,999.50 is: 9,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,663.65 : 17,476.88 = 6,999.50 : x
  2. Step 2: Convert to fraction form
    12,663.65/17,476.88 = 6,999.50/x
  3. Step 3: Cross multiply
    12,663.65x = 17,476.88 × 6,999.50
  4. Step 4: Simplify right side
    12,663.65x = 122,329,299.18
  5. Step 5: Solve for x
    x = 122,329,299.18/12,663.65
  6. Step 6: Final answer
    x = 9,659.88

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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.