Home / 12,421.68-18,588.78-9,476.52

Finding the Fourth Proportional to 12,421.68, 18,588.78 and 9,476.52

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Solution

The fourth proportional to 12,421.68, 18,588.78 and 9,476.52 is: 14,181.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,421.68 : 18,588.78 = 9,476.52 : x
  2. Step 2: Convert to fraction form
    12,421.68/18,588.78 = 9,476.52/x
  3. Step 3: Cross multiply
    12,421.68x = 18,588.78 × 9,476.52
  4. Step 4: Simplify right side
    12,421.68x = 176,156,945.45
  5. Step 5: Solve for x
    x = 176,156,945.45/12,421.68
  6. Step 6: Final answer
    x = 14,181.41

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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.