Home / 18,138.42-25,030.77-10,180.50

Finding the Fourth Proportional to 18,138.42, 25,030.77 and 10,180.50

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Solution

The fourth proportional to 18,138.42, 25,030.77 and 10,180.50 is: 14,048.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.42 : 25,030.77 = 10,180.50 : x
  2. Step 2: Convert to fraction form
    18,138.42/25,030.77 = 10,180.50/x
  3. Step 3: Cross multiply
    18,138.42x = 25,030.77 × 10,180.50
  4. Step 4: Simplify right side
    18,138.42x = 254,825,753.99
  5. Step 5: Solve for x
    x = 254,825,753.99/18,138.42
  6. Step 6: Final answer
    x = 14,048.95

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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.