Home / 13,750.74-20,624.89-3,889.80

Finding the Fourth Proportional to 13,750.74, 20,624.89 and 3,889.80

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Solution

The fourth proportional to 13,750.74, 20,624.89 and 3,889.80 is: 5,834.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.74 : 20,624.89 = 3,889.80 : x
  2. Step 2: Convert to fraction form
    13,750.74/20,624.89 = 3,889.80/x
  3. Step 3: Cross multiply
    13,750.74x = 20,624.89 × 3,889.80
  4. Step 4: Simplify right side
    13,750.74x = 80,226,697.12
  5. Step 5: Solve for x
    x = 80,226,697.12/13,750.74
  6. Step 6: Final answer
    x = 5,834.35

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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.