Home / 10,936.40-16,491.50-9,726.80

Finding the Fourth Proportional to 10,936.40, 16,491.50 and 9,726.80

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Solution

The fourth proportional to 10,936.40, 16,491.50 and 9,726.80 is: 14,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936.40 : 16,491.50 = 9,726.80 : x
  2. Step 2: Convert to fraction form
    10,936.40/16,491.50 = 9,726.80/x
  3. Step 3: Cross multiply
    10,936.40x = 16,491.50 × 9,726.80
  4. Step 4: Simplify right side
    10,936.40x = 160,409,522.20
  5. Step 5: Solve for x
    x = 160,409,522.20/10,936.40
  6. Step 6: Final answer
    x = 14,667.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.