Home / 12,253.77-18,363.63-6,398.70

Finding the Fourth Proportional to 12,253.77, 18,363.63 and 6,398.70

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Solution

The fourth proportional to 12,253.77, 18,363.63 and 6,398.70 is: 9,589.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.77 : 18,363.63 = 6,398.70 : x
  2. Step 2: Convert to fraction form
    12,253.77/18,363.63 = 6,398.70/x
  3. Step 3: Cross multiply
    12,253.77x = 18,363.63 × 6,398.70
  4. Step 4: Simplify right side
    12,253.77x = 117,503,359.28
  5. Step 5: Solve for x
    x = 117,503,359.28/12,253.77
  6. Step 6: Final answer
    x = 9,589.16

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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.