Home / 15,438.69-21,305.48-9,063.81

Finding the Fourth Proportional to 15,438.69, 21,305.48 and 9,063.81

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Solution

The fourth proportional to 15,438.69, 21,305.48 and 9,063.81 is: 12,508.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.69 : 21,305.48 = 9,063.81 : x
  2. Step 2: Convert to fraction form
    15,438.69/21,305.48 = 9,063.81/x
  3. Step 3: Cross multiply
    15,438.69x = 21,305.48 × 9,063.81
  4. Step 4: Simplify right side
    15,438.69x = 193,108,777.36
  5. Step 5: Solve for x
    x = 193,108,777.36/15,438.69
  6. Step 6: Final answer
    x = 12,508.11

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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.