Home / 11,186.84-15,432.46-7,409.08

Finding the Fourth Proportional to 11,186.84, 15,432.46 and 7,409.08

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Solution

The fourth proportional to 11,186.84, 15,432.46 and 7,409.08 is: 10,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.84 : 15,432.46 = 7,409.08 : x
  2. Step 2: Convert to fraction form
    11,186.84/15,432.46 = 7,409.08/x
  3. Step 3: Cross multiply
    11,186.84x = 15,432.46 × 7,409.08
  4. Step 4: Simplify right side
    11,186.84x = 114,340,330.74
  5. Step 5: Solve for x
    x = 114,340,330.74/11,186.84
  6. Step 6: Final answer
    x = 10,220.97

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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.