Home / 18,829.06-28,203.39-9,916.29

Finding the Fourth Proportional to 18,829.06, 28,203.39 and 9,916.29

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Solution

The fourth proportional to 18,829.06, 28,203.39 and 9,916.29 is: 14,853.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.06 : 28,203.39 = 9,916.29 : x
  2. Step 2: Convert to fraction form
    18,829.06/28,203.39 = 9,916.29/x
  3. Step 3: Cross multiply
    18,829.06x = 28,203.39 × 9,916.29
  4. Step 4: Simplify right side
    18,829.06x = 279,672,994.22
  5. Step 5: Solve for x
    x = 279,672,994.22/18,829.06
  6. Step 6: Final answer
    x = 14,853.27

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1.5x scale

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.