Home / 15,179.37-20,946.51-9,513.92

Finding the Fourth Proportional to 15,179.37, 20,946.51 and 9,513.92

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Solution

The fourth proportional to 15,179.37, 20,946.51 and 9,513.92 is: 13,128.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179.37 : 20,946.51 = 9,513.92 : x
  2. Step 2: Convert to fraction form
    15,179.37/20,946.51 = 9,513.92/x
  3. Step 3: Cross multiply
    15,179.37x = 20,946.51 × 9,513.92
  4. Step 4: Simplify right side
    15,179.37x = 199,283,315.69
  5. Step 5: Solve for x
    x = 199,283,315.69/15,179.37
  6. Step 6: Final answer
    x = 13,128.56

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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.