Home / 12,398.69-18,579.56-6,853.61

Finding the Fourth Proportional to 12,398.69, 18,579.56 and 6,853.61

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Solution

The fourth proportional to 12,398.69, 18,579.56 and 6,853.61 is: 10,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.69 : 18,579.56 = 6,853.61 : x
  2. Step 2: Convert to fraction form
    12,398.69/18,579.56 = 6,853.61/x
  3. Step 3: Cross multiply
    12,398.69x = 18,579.56 × 6,853.61
  4. Step 4: Simplify right side
    12,398.69x = 127,336,931.05
  5. Step 5: Solve for x
    x = 127,336,931.05/12,398.69
  6. Step 6: Final answer
    x = 10,270.20

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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.