Home / 19,511.08-29,266.72-7,821.56

Finding the Fourth Proportional to 19,511.08, 29,266.72 and 7,821.56

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Solution

The fourth proportional to 19,511.08, 29,266.72 and 7,821.56 is: 11,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.08 : 29,266.72 = 7,821.56 : x
  2. Step 2: Convert to fraction form
    19,511.08/29,266.72 = 7,821.56/x
  3. Step 3: Cross multiply
    19,511.08x = 29,266.72 × 7,821.56
  4. Step 4: Simplify right side
    19,511.08x = 228,911,460.10
  5. Step 5: Solve for x
    x = 228,911,460.10/19,511.08
  6. Step 6: Final answer
    x = 11,732.38

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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.