Home / 18,342.92-25,313.32-10,386.69

Finding the Fourth Proportional to 18,342.92, 25,313.32 and 10,386.69

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Solution

The fourth proportional to 18,342.92, 25,313.32 and 10,386.69 is: 14,333.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.92 : 25,313.32 = 10,386.69 : x
  2. Step 2: Convert to fraction form
    18,342.92/25,313.32 = 10,386.69/x
  3. Step 3: Cross multiply
    18,342.92x = 25,313.32 × 10,386.69
  4. Step 4: Simplify right side
    18,342.92x = 262,921,715.62
  5. Step 5: Solve for x
    x = 262,921,715.62/18,342.92
  6. Step 6: Final answer
    x = 14,333.69

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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.