Home / 11,322.78-16,985.08-4,306.15

Finding the Fourth Proportional to 11,322.78, 16,985.08 and 4,306.15

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Solution

The fourth proportional to 11,322.78, 16,985.08 and 4,306.15 is: 6,459.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,322.78 : 16,985.08 = 4,306.15 : x
  2. Step 2: Convert to fraction form
    11,322.78/16,985.08 = 4,306.15/x
  3. Step 3: Cross multiply
    11,322.78x = 16,985.08 × 4,306.15
  4. Step 4: Simplify right side
    11,322.78x = 73,140,302.24
  5. Step 5: Solve for x
    x = 73,140,302.24/11,322.78
  6. Step 6: Final answer
    x = 6,459.57

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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.