Home / 11,258.63-16,878.85-4,689.76

Finding the Fourth Proportional to 11,258.63, 16,878.85 and 4,689.76

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Solution

The fourth proportional to 11,258.63, 16,878.85 and 4,689.76 is: 7,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258.63 : 16,878.85 = 4,689.76 : x
  2. Step 2: Convert to fraction form
    11,258.63/16,878.85 = 4,689.76/x
  3. Step 3: Cross multiply
    11,258.63x = 16,878.85 × 4,689.76
  4. Step 4: Simplify right side
    11,258.63x = 79,157,755.58
  5. Step 5: Solve for x
    x = 79,157,755.58/11,258.63
  6. Step 6: Final answer
    x = 7,030.85

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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.