Home / 18,867.72-26,043.48-12,897.24

Finding the Fourth Proportional to 18,867.72, 26,043.48 and 12,897.24

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Solution

The fourth proportional to 18,867.72, 26,043.48 and 12,897.24 is: 17,802.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.72 : 26,043.48 = 12,897.24 : x
  2. Step 2: Convert to fraction form
    18,867.72/26,043.48 = 12,897.24/x
  3. Step 3: Cross multiply
    18,867.72x = 26,043.48 × 12,897.24
  4. Step 4: Simplify right side
    18,867.72x = 335,889,012.00
  5. Step 5: Solve for x
    x = 335,889,012.00/18,867.72
  6. Step 6: Final answer
    x = 17,802.31

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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.