Home / 13,364.11-20,068.95-11,140.66

Finding the Fourth Proportional to 13,364.11, 20,068.95 and 11,140.66

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Solution

The fourth proportional to 13,364.11, 20,068.95 and 11,140.66 is: 16,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.11 : 20,068.95 = 11,140.66 : x
  2. Step 2: Convert to fraction form
    13,364.11/20,068.95 = 11,140.66/x
  3. Step 3: Cross multiply
    13,364.11x = 20,068.95 × 11,140.66
  4. Step 4: Simplify right side
    13,364.11x = 223,581,348.51
  5. Step 5: Solve for x
    x = 223,581,348.51/13,364.11
  6. Step 6: Final answer
    x = 16,729.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.