Home / 12,615.65-17,427.27-11,951.36

Finding the Fourth Proportional to 12,615.65, 17,427.27 and 11,951.36

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Solution

The fourth proportional to 12,615.65, 17,427.27 and 11,951.36 is: 16,509.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.65 : 17,427.27 = 11,951.36 : x
  2. Step 2: Convert to fraction form
    12,615.65/17,427.27 = 11,951.36/x
  3. Step 3: Cross multiply
    12,615.65x = 17,427.27 × 11,951.36
  4. Step 4: Simplify right side
    12,615.65x = 208,279,490.45
  5. Step 5: Solve for x
    x = 208,279,490.45/12,615.65
  6. Step 6: Final answer
    x = 16,509.62

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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.