Home / 11,491.40-15,859.97-10,740.98

Finding the Fourth Proportional to 11,491.40, 15,859.97 and 10,740.98

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Solution

The fourth proportional to 11,491.40, 15,859.97 and 10,740.98 is: 14,824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,491.40 : 15,859.97 = 10,740.98 : x
  2. Step 2: Convert to fraction form
    11,491.40/15,859.97 = 10,740.98/x
  3. Step 3: Cross multiply
    11,491.40x = 15,859.97 × 10,740.98
  4. Step 4: Simplify right side
    11,491.40x = 170,351,700.50
  5. Step 5: Solve for x
    x = 170,351,700.50/11,491.40
  6. Step 6: Final answer
    x = 14,824.28

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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.