Home / 13,179.04-19,678.28-11,230.24

Finding the Fourth Proportional to 13,179.04, 19,678.28 and 11,230.24

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Solution

The fourth proportional to 13,179.04, 19,678.28 and 11,230.24 is: 16,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.04 : 19,678.28 = 11,230.24 : x
  2. Step 2: Convert to fraction form
    13,179.04/19,678.28 = 11,230.24/x
  3. Step 3: Cross multiply
    13,179.04x = 19,678.28 × 11,230.24
  4. Step 4: Simplify right side
    13,179.04x = 220,991,807.19
  5. Step 5: Solve for x
    x = 220,991,807.19/13,179.04
  6. Step 6: Final answer
    x = 16,768.43

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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.