Home / 18,358.09-25,333.29-10,400.38

Finding the Fourth Proportional to 18,358.09, 25,333.29 and 10,400.38

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Solution

The fourth proportional to 18,358.09, 25,333.29 and 10,400.38 is: 14,352.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.09 : 25,333.29 = 10,400.38 : x
  2. Step 2: Convert to fraction form
    18,358.09/25,333.29 = 10,400.38/x
  3. Step 3: Cross multiply
    18,358.09x = 25,333.29 × 10,400.38
  4. Step 4: Simplify right side
    18,358.09x = 263,475,779.32
  5. Step 5: Solve for x
    x = 263,475,779.32/18,358.09
  6. Step 6: Final answer
    x = 14,352.03

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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.