Home / 10,348.38-15,497.70-5,661.36

Finding the Fourth Proportional to 10,348.38, 15,497.70 and 5,661.36

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Solution

The fourth proportional to 10,348.38, 15,497.70 and 5,661.36 is: 8,478.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.38 : 15,497.70 = 5,661.36 : x
  2. Step 2: Convert to fraction form
    10,348.38/15,497.70 = 5,661.36/x
  3. Step 3: Cross multiply
    10,348.38x = 15,497.70 × 5,661.36
  4. Step 4: Simplify right side
    10,348.38x = 87,738,058.87
  5. Step 5: Solve for x
    x = 87,738,058.87/10,348.38
  6. Step 6: Final answer
    x = 8,478.43

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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.