Home / 11,942.95-16,480.78-6,637.45

Finding the Fourth Proportional to 11,942.95, 16,480.78 and 6,637.45

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Solution

The fourth proportional to 11,942.95, 16,480.78 and 6,637.45 is: 9,159.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.95 : 16,480.78 = 6,637.45 : x
  2. Step 2: Convert to fraction form
    11,942.95/16,480.78 = 6,637.45/x
  3. Step 3: Cross multiply
    11,942.95x = 16,480.78 × 6,637.45
  4. Step 4: Simplify right side
    11,942.95x = 109,390,353.21
  5. Step 5: Solve for x
    x = 109,390,353.21/11,942.95
  6. Step 6: Final answer
    x = 9,159.41

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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.