Home / 12,493.36-18,721.48-5,088.76

Finding the Fourth Proportional to 12,493.36, 18,721.48 and 5,088.76

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Solution

The fourth proportional to 12,493.36, 18,721.48 and 5,088.76 is: 7,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.36 : 18,721.48 = 5,088.76 : x
  2. Step 2: Convert to fraction form
    12,493.36/18,721.48 = 5,088.76/x
  3. Step 3: Cross multiply
    12,493.36x = 18,721.48 × 5,088.76
  4. Step 4: Simplify right side
    12,493.36x = 95,269,118.56
  5. Step 5: Solve for x
    x = 95,269,118.56/12,493.36
  6. Step 6: Final answer
    x = 7,625.58

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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.