Home / 14,005.20-21,007.80-10,724.70

Finding the Fourth Proportional to 14,005.20, 21,007.80 and 10,724.70

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Solution

The fourth proportional to 14,005.20, 21,007.80 and 10,724.70 is: 16,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.20 : 21,007.80 = 10,724.70 : x
  2. Step 2: Convert to fraction form
    14,005.20/21,007.80 = 10,724.70/x
  3. Step 3: Cross multiply
    14,005.20x = 21,007.80 × 10,724.70
  4. Step 4: Simplify right side
    14,005.20x = 225,302,352.66
  5. Step 5: Solve for x
    x = 225,302,352.66/14,005.20
  6. Step 6: Final answer
    x = 16,087.05

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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.