Home / 18,342.50-25,313.87-10,276.80

Finding the Fourth Proportional to 18,342.50, 25,313.87 and 10,276.80

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Solution

The fourth proportional to 18,342.50, 25,313.87 and 10,276.80 is: 14,182.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.50 : 25,313.87 = 10,276.80 : x
  2. Step 2: Convert to fraction form
    18,342.50/25,313.87 = 10,276.80/x
  3. Step 3: Cross multiply
    18,342.50x = 25,313.87 × 10,276.80
  4. Step 4: Simplify right side
    18,342.50x = 260,145,579.22
  5. Step 5: Solve for x
    x = 260,145,579.22/18,342.50
  6. Step 6: Final answer
    x = 14,182.67

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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.