Home / 18,750.31-25,848.71-12,774.33

Finding the Fourth Proportional to 18,750.31, 25,848.71 and 12,774.33

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Solution

The fourth proportional to 18,750.31, 25,848.71 and 12,774.33 is: 17,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.31 : 25,848.71 = 12,774.33 : x
  2. Step 2: Convert to fraction form
    18,750.31/25,848.71 = 12,774.33/x
  3. Step 3: Cross multiply
    18,750.31x = 25,848.71 × 12,774.33
  4. Step 4: Simplify right side
    18,750.31x = 330,199,951.61
  5. Step 5: Solve for x
    x = 330,199,951.61/18,750.31
  6. Step 6: Final answer
    x = 17,610.38

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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.