Home / 12,216.71-18,330.52-7,022.58

Finding the Fourth Proportional to 12,216.71, 18,330.52 and 7,022.58

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Solution

The fourth proportional to 12,216.71, 18,330.52 and 7,022.58 is: 10,537.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.71 : 18,330.52 = 7,022.58 : x
  2. Step 2: Convert to fraction form
    12,216.71/18,330.52 = 7,022.58/x
  3. Step 3: Cross multiply
    12,216.71x = 18,330.52 × 7,022.58
  4. Step 4: Simplify right side
    12,216.71x = 128,727,543.14
  5. Step 5: Solve for x
    x = 128,727,543.14/12,216.71
  6. Step 6: Final answer
    x = 10,537.01

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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.