Home / 10,620.68-15,935.50-5,689

Finding the Fourth Proportional to 10,620.68, 15,935.50 and 5,689

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Solution

The fourth proportional to 10,620.68, 15,935.50 and 5,689 is: 8,535.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.68 : 15,935.50 = 5,689 : x
  2. Step 2: Convert to fraction form
    10,620.68/15,935.50 = 5,689/x
  3. Step 3: Cross multiply
    10,620.68x = 15,935.50 × 5,689
  4. Step 4: Simplify right side
    10,620.68x = 90,657,059.50
  5. Step 5: Solve for x
    x = 90,657,059.50/10,620.68
  6. Step 6: Final answer
    x = 8,535.90

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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.