Home / 18,743.48-25,855.96-12,363.76

Finding the Fourth Proportional to 18,743.48, 25,855.96 and 12,363.76

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Solution

The fourth proportional to 18,743.48, 25,855.96 and 12,363.76 is: 17,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.48 : 25,855.96 = 12,363.76 : x
  2. Step 2: Convert to fraction form
    18,743.48/25,855.96 = 12,363.76/x
  3. Step 3: Cross multiply
    18,743.48x = 25,855.96 × 12,363.76
  4. Step 4: Simplify right side
    18,743.48x = 319,676,884.01
  5. Step 5: Solve for x
    x = 319,676,884.01/18,743.48
  6. Step 6: Final answer
    x = 17,055.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.