Home / 18,546.74-25,580.54-12,881.50

Finding the Fourth Proportional to 18,546.74, 25,580.54 and 12,881.50

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Solution

The fourth proportional to 18,546.74, 25,580.54 and 12,881.50 is: 17,766.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,546.74 : 25,580.54 = 12,881.50 : x
  2. Step 2: Convert to fraction form
    18,546.74/25,580.54 = 12,881.50/x
  3. Step 3: Cross multiply
    18,546.74x = 25,580.54 × 12,881.50
  4. Step 4: Simplify right side
    18,546.74x = 329,515,598.11
  5. Step 5: Solve for x
    x = 329,515,598.11/18,546.74
  6. Step 6: Final answer
    x = 17,766.77

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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.