Home / 19,326.39-28,989.78-6,178.47

Finding the Fourth Proportional to 19,326.39, 28,989.78 and 6,178.47

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Solution

The fourth proportional to 19,326.39, 28,989.78 and 6,178.47 is: 9,267.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.39 : 28,989.78 = 6,178.47 : x
  2. Step 2: Convert to fraction form
    19,326.39/28,989.78 = 6,178.47/x
  3. Step 3: Cross multiply
    19,326.39x = 28,989.78 × 6,178.47
  4. Step 4: Simplify right side
    19,326.39x = 179,112,486.04
  5. Step 5: Solve for x
    x = 179,112,486.04/19,326.39
  6. Step 6: Final answer
    x = 9,267.77

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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.