Home / 12,259.38-18,385.89-5,235.87

Finding the Fourth Proportional to 12,259.38, 18,385.89 and 5,235.87

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Solution

The fourth proportional to 12,259.38, 18,385.89 and 5,235.87 is: 7,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,259.38 : 18,385.89 = 5,235.87 : x
  2. Step 2: Convert to fraction form
    12,259.38/18,385.89 = 5,235.87/x
  3. Step 3: Cross multiply
    12,259.38x = 18,385.89 × 5,235.87
  4. Step 4: Simplify right side
    12,259.38x = 96,266,129.87
  5. Step 5: Solve for x
    x = 96,266,129.87/12,259.38
  6. Step 6: Final answer
    x = 7,852.45

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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.