Home / 18,749.76-28,126.74-6,271.44

Finding the Fourth Proportional to 18,749.76, 28,126.74 and 6,271.44

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Solution

The fourth proportional to 18,749.76, 28,126.74 and 6,271.44 is: 9,407.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.76 : 28,126.74 = 6,271.44 : x
  2. Step 2: Convert to fraction form
    18,749.76/28,126.74 = 6,271.44/x
  3. Step 3: Cross multiply
    18,749.76x = 28,126.74 × 6,271.44
  4. Step 4: Simplify right side
    18,749.76x = 176,395,162.31
  5. Step 5: Solve for x
    x = 176,395,162.31/18,749.76
  6. Step 6: Final answer
    x = 9,407.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.