Home / 18,354.60-25,327.62-12,695.40

Finding the Fourth Proportional to 18,354.60, 25,327.62 and 12,695.40

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Solution

The fourth proportional to 18,354.60, 25,327.62 and 12,695.40 is: 17,518.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.60 : 25,327.62 = 12,695.40 : x
  2. Step 2: Convert to fraction form
    18,354.60/25,327.62 = 12,695.40/x
  3. Step 3: Cross multiply
    18,354.60x = 25,327.62 × 12,695.40
  4. Step 4: Simplify right side
    18,354.60x = 321,544,266.95
  5. Step 5: Solve for x
    x = 321,544,266.95/18,354.60
  6. Step 6: Final answer
    x = 17,518.46

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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.