Home / 11,938.07-16,474.43-6,632.78

Finding the Fourth Proportional to 11,938.07, 16,474.43 and 6,632.78

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Solution

The fourth proportional to 11,938.07, 16,474.43 and 6,632.78 is: 9,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.07 : 16,474.43 = 6,632.78 : x
  2. Step 2: Convert to fraction form
    11,938.07/16,474.43 = 6,632.78/x
  3. Step 3: Cross multiply
    11,938.07x = 16,474.43 × 6,632.78
  4. Step 4: Simplify right side
    11,938.07x = 109,271,154.28
  5. Step 5: Solve for x
    x = 109,271,154.28/11,938.07
  6. Step 6: Final answer
    x = 9,153.17

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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.