Home / 18,910.51-26,077.16-12,534.88

Finding the Fourth Proportional to 18,910.51, 26,077.16 and 12,534.88

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Solution

The fourth proportional to 18,910.51, 26,077.16 and 12,534.88 is: 17,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.51 : 26,077.16 = 12,534.88 : x
  2. Step 2: Convert to fraction form
    18,910.51/26,077.16 = 12,534.88/x
  3. Step 3: Cross multiply
    18,910.51x = 26,077.16 × 12,534.88
  4. Step 4: Simplify right side
    18,910.51x = 326,874,071.34
  5. Step 5: Solve for x
    x = 326,874,071.34/18,910.51
  6. Step 6: Final answer
    x = 17,285.31

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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.