Home / 7,008.72-10,511.80-1,814.28

Finding the Fourth Proportional to 7,008.72, 10,511.80 and 1,814.28

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Solution

The fourth proportional to 7,008.72, 10,511.80 and 1,814.28 is: 2,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,008.72 : 10,511.80 = 1,814.28 : x
  2. Step 2: Convert to fraction form
    7,008.72/10,511.80 = 1,814.28/x
  3. Step 3: Cross multiply
    7,008.72x = 10,511.80 × 1,814.28
  4. Step 4: Simplify right side
    7,008.72x = 19,071,348.50
  5. Step 5: Solve for x
    x = 19,071,348.50/7,008.72
  6. Step 6: Final answer
    x = 2,721.09

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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.