Home / 14,187.80-21,275.52-4,825.28

Finding the Fourth Proportional to 14,187.80, 21,275.52 and 4,825.28

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Solution

The fourth proportional to 14,187.80, 21,275.52 and 4,825.28 is: 7,235.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.80 : 21,275.52 = 4,825.28 : x
  2. Step 2: Convert to fraction form
    14,187.80/21,275.52 = 4,825.28/x
  3. Step 3: Cross multiply
    14,187.80x = 21,275.52 × 4,825.28
  4. Step 4: Simplify right side
    14,187.80x = 102,660,341.15
  5. Step 5: Solve for x
    x = 102,660,341.15/14,187.80
  6. Step 6: Final answer
    x = 7,235.82

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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.