Home / 10,711.29-16,038.99-8,619.87

Finding the Fourth Proportional to 10,711.29, 16,038.99 and 8,619.87

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Solution

The fourth proportional to 10,711.29, 16,038.99 and 8,619.87 is: 12,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,711.29 : 16,038.99 = 8,619.87 : x
  2. Step 2: Convert to fraction form
    10,711.29/16,038.99 = 8,619.87/x
  3. Step 3: Cross multiply
    10,711.29x = 16,038.99 × 8,619.87
  4. Step 4: Simplify right side
    10,711.29x = 138,254,008.73
  5. Step 5: Solve for x
    x = 138,254,008.73/10,711.29
  6. Step 6: Final answer
    x = 12,907.32

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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.