Home / 18,087.78-24,970.06-13,803.68

Finding the Fourth Proportional to 18,087.78, 24,970.06 and 13,803.68

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Solution

The fourth proportional to 18,087.78, 24,970.06 and 13,803.68 is: 19,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.78 : 24,970.06 = 13,803.68 : x
  2. Step 2: Convert to fraction form
    18,087.78/24,970.06 = 13,803.68/x
  3. Step 3: Cross multiply
    18,087.78x = 24,970.06 × 13,803.68
  4. Step 4: Simplify right side
    18,087.78x = 344,678,717.82
  5. Step 5: Solve for x
    x = 344,678,717.82/18,087.78
  6. Step 6: Final answer
    x = 19,055.89

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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.