Home / 14,284.80-21,428.64-4,923.59

Finding the Fourth Proportional to 14,284.80, 21,428.64 and 4,923.59

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Solution

The fourth proportional to 14,284.80, 21,428.64 and 4,923.59 is: 7,385.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,284.80 : 21,428.64 = 4,923.59 : x
  2. Step 2: Convert to fraction form
    14,284.80/21,428.64 = 4,923.59/x
  3. Step 3: Cross multiply
    14,284.80x = 21,428.64 × 4,923.59
  4. Step 4: Simplify right side
    14,284.80x = 105,505,730.47
  5. Step 5: Solve for x
    x = 105,505,730.47/14,284.80
  6. Step 6: Final answer
    x = 7,385.87

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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.