Home / 18,749.74-25,895.91-12,771.04

Finding the Fourth Proportional to 18,749.74, 25,895.91 and 12,771.04

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Solution

The fourth proportional to 18,749.74, 25,895.91 and 12,771.04 is: 17,638.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.74 : 25,895.91 = 12,771.04 : x
  2. Step 2: Convert to fraction form
    18,749.74/25,895.91 = 12,771.04/x
  3. Step 3: Cross multiply
    18,749.74x = 25,895.91 × 12,771.04
  4. Step 4: Simplify right side
    18,749.74x = 330,717,702.45
  5. Step 5: Solve for x
    x = 330,717,702.45/18,749.74
  6. Step 6: Final answer
    x = 17,638.52

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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.