Home / 16,678.32-23,013.36-10,399.20

Finding the Fourth Proportional to 16,678.32, 23,013.36 and 10,399.20

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Solution

The fourth proportional to 16,678.32, 23,013.36 and 10,399.20 is: 14,349.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.32 : 23,013.36 = 10,399.20 : x
  2. Step 2: Convert to fraction form
    16,678.32/23,013.36 = 10,399.20/x
  3. Step 3: Cross multiply
    16,678.32x = 23,013.36 × 10,399.20
  4. Step 4: Simplify right side
    16,678.32x = 239,320,533.31
  5. Step 5: Solve for x
    x = 239,320,533.31/16,678.32
  6. Step 6: Final answer
    x = 14,349.20

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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.