Home / 11,258.13-16,878.06-4,689.21

Finding the Fourth Proportional to 11,258.13, 16,878.06 and 4,689.21

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Solution

The fourth proportional to 11,258.13, 16,878.06 and 4,689.21 is: 7,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258.13 : 16,878.06 = 4,689.21 : x
  2. Step 2: Convert to fraction form
    11,258.13/16,878.06 = 4,689.21/x
  3. Step 3: Cross multiply
    11,258.13x = 16,878.06 × 4,689.21
  4. Step 4: Simplify right side
    11,258.13x = 79,144,767.73
  5. Step 5: Solve for x
    x = 79,144,767.73/11,258.13
  6. Step 6: Final answer
    x = 7,030.01

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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.