Home / 13,698.38-20,448.47-12,037.64

Finding the Fourth Proportional to 13,698.38, 20,448.47 and 12,037.64

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Solution

The fourth proportional to 13,698.38, 20,448.47 and 12,037.64 is: 17,969.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,698.38 : 20,448.47 = 12,037.64 : x
  2. Step 2: Convert to fraction form
    13,698.38/20,448.47 = 12,037.64/x
  3. Step 3: Cross multiply
    13,698.38x = 20,448.47 × 12,037.64
  4. Step 4: Simplify right side
    13,698.38x = 246,151,320.41
  5. Step 5: Solve for x
    x = 246,151,320.41/13,698.38
  6. Step 6: Final answer
    x = 17,969.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.