Home / 12,370.20-18,533.70-10,426.20

Finding the Fourth Proportional to 12,370.20, 18,533.70 and 10,426.20

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Solution

The fourth proportional to 12,370.20, 18,533.70 and 10,426.20 is: 15,621.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,370.20 : 18,533.70 = 10,426.20 : x
  2. Step 2: Convert to fraction form
    12,370.20/18,533.70 = 10,426.20/x
  3. Step 3: Cross multiply
    12,370.20x = 18,533.70 × 10,426.20
  4. Step 4: Simplify right side
    12,370.20x = 193,236,062.94
  5. Step 5: Solve for x
    x = 193,236,062.94/12,370.20
  6. Step 6: Final answer
    x = 15,621.09

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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.