Home / 9,126.15-13,678.70-4,123.13

Finding the Fourth Proportional to 9,126.15, 13,678.70 and 4,123.13

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Solution

The fourth proportional to 9,126.15, 13,678.70 and 4,123.13 is: 6,179.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.15 : 13,678.70 = 4,123.13 : x
  2. Step 2: Convert to fraction form
    9,126.15/13,678.70 = 4,123.13/x
  3. Step 3: Cross multiply
    9,126.15x = 13,678.70 × 4,123.13
  4. Step 4: Simplify right side
    9,126.15x = 56,399,000.25
  5. Step 5: Solve for x
    x = 56,399,000.25/9,126.15
  6. Step 6: Final answer
    x = 6,179.93

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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.