Home / 12,303.34-18,451.14-3,981.43

Finding the Fourth Proportional to 12,303.34, 18,451.14 and 3,981.43

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Solution

The fourth proportional to 12,303.34, 18,451.14 and 3,981.43 is: 5,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.34 : 18,451.14 = 3,981.43 : x
  2. Step 2: Convert to fraction form
    12,303.34/18,451.14 = 3,981.43/x
  3. Step 3: Cross multiply
    12,303.34x = 18,451.14 × 3,981.43
  4. Step 4: Simplify right side
    12,303.34x = 73,461,900.97
  5. Step 5: Solve for x
    x = 73,461,900.97/12,303.34
  6. Step 6: Final answer
    x = 5,970.89

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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.