Home / 13,750.51-20,627.58-3,889.57

Finding the Fourth Proportional to 13,750.51, 20,627.58 and 3,889.57

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Solution

The fourth proportional to 13,750.51, 20,627.58 and 3,889.57 is: 5,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.51 : 20,627.58 = 3,889.57 : x
  2. Step 2: Convert to fraction form
    13,750.51/20,627.58 = 3,889.57/x
  3. Step 3: Cross multiply
    13,750.51x = 20,627.58 × 3,889.57
  4. Step 4: Simplify right side
    13,750.51x = 80,232,416.34
  5. Step 5: Solve for x
    x = 80,232,416.34/13,750.51
  6. Step 6: Final answer
    x = 5,834.87

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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.