Home / 12,628.74-18,915.96-10,246.12

Finding the Fourth Proportional to 12,628.74, 18,915.96 and 10,246.12

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Solution

The fourth proportional to 12,628.74, 18,915.96 and 10,246.12 is: 15,347.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.74 : 18,915.96 = 10,246.12 : x
  2. Step 2: Convert to fraction form
    12,628.74/18,915.96 = 10,246.12/x
  3. Step 3: Cross multiply
    12,628.74x = 18,915.96 × 10,246.12
  4. Step 4: Simplify right side
    12,628.74x = 193,815,196.08
  5. Step 5: Solve for x
    x = 193,815,196.08/12,628.74
  6. Step 6: Final answer
    x = 15,347.15

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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.