Home / 10,686.08-16,017.78-5,135.96

Finding the Fourth Proportional to 10,686.08, 16,017.78 and 5,135.96

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Solution

The fourth proportional to 10,686.08, 16,017.78 and 5,135.96 is: 7,698.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.08 : 16,017.78 = 5,135.96 : x
  2. Step 2: Convert to fraction form
    10,686.08/16,017.78 = 5,135.96/x
  3. Step 3: Cross multiply
    10,686.08x = 16,017.78 × 5,135.96
  4. Step 4: Simplify right side
    10,686.08x = 82,266,677.37
  5. Step 5: Solve for x
    x = 82,266,677.37/10,686.08
  6. Step 6: Final answer
    x = 7,698.49

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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.