Home / 12,318.84-18,465.81-5,303.43

Finding the Fourth Proportional to 12,318.84, 18,465.81 and 5,303.43

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Solution

The fourth proportional to 12,318.84, 18,465.81 and 5,303.43 is: 7,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.84 : 18,465.81 = 5,303.43 : x
  2. Step 2: Convert to fraction form
    12,318.84/18,465.81 = 5,303.43/x
  3. Step 3: Cross multiply
    12,318.84x = 18,465.81 × 5,303.43
  4. Step 4: Simplify right side
    12,318.84x = 97,932,130.73
  5. Step 5: Solve for x
    x = 97,932,130.73/12,318.84
  6. Step 6: Final answer
    x = 7,949.79

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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.