Home / 11,181.70-15,430.98-6,146.38

Finding the Fourth Proportional to 11,181.70, 15,430.98 and 6,146.38

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Solution

The fourth proportional to 11,181.70, 15,430.98 and 6,146.38 is: 8,482.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.70 : 15,430.98 = 6,146.38 : x
  2. Step 2: Convert to fraction form
    11,181.70/15,430.98 = 6,146.38/x
  3. Step 3: Cross multiply
    11,181.70x = 15,430.98 × 6,146.38
  4. Step 4: Simplify right side
    11,181.70x = 94,844,666.85
  5. Step 5: Solve for x
    x = 94,844,666.85/11,181.70
  6. Step 6: Final answer
    x = 8,482.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.