Home / 18,300.36-25,253.82-9,916.68

Finding the Fourth Proportional to 18,300.36, 25,253.82 and 9,916.68

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Solution

The fourth proportional to 18,300.36, 25,253.82 and 9,916.68 is: 13,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.36 : 25,253.82 = 9,916.68 : x
  2. Step 2: Convert to fraction form
    18,300.36/25,253.82 = 9,916.68/x
  3. Step 3: Cross multiply
    18,300.36x = 25,253.82 × 9,916.68
  4. Step 4: Simplify right side
    18,300.36x = 250,434,051.72
  5. Step 5: Solve for x
    x = 250,434,051.72/18,300.36
  6. Step 6: Final answer
    x = 13,684.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.