Home / 18,749.28-28,137.75-8,888.52

Finding the Fourth Proportional to 18,749.28, 28,137.75 and 8,888.52

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Solution

The fourth proportional to 18,749.28, 28,137.75 and 8,888.52 is: 13,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,749.28 : 28,137.75 = 8,888.52 : x
  2. Step 2: Convert to fraction form
    18,749.28/28,137.75 = 8,888.52/x
  3. Step 3: Cross multiply
    18,749.28x = 28,137.75 × 8,888.52
  4. Step 4: Simplify right side
    18,749.28x = 250,102,953.63
  5. Step 5: Solve for x
    x = 250,102,953.63/18,749.28
  6. Step 6: Final answer
    x = 13,339.34

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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.