Home / 12,948.43-19,334.81-10,286.05

Finding the Fourth Proportional to 12,948.43, 19,334.81 and 10,286.05

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Solution

The fourth proportional to 12,948.43, 19,334.81 and 10,286.05 is: 15,359.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948.43 : 19,334.81 = 10,286.05 : x
  2. Step 2: Convert to fraction form
    12,948.43/19,334.81 = 10,286.05/x
  3. Step 3: Cross multiply
    12,948.43x = 19,334.81 × 10,286.05
  4. Step 4: Simplify right side
    12,948.43x = 198,878,822.40
  5. Step 5: Solve for x
    x = 198,878,822.40/12,948.43
  6. Step 6: Final answer
    x = 15,359.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.