Home / 14,639.18-20,185.35-11,655.14

Finding the Fourth Proportional to 14,639.18, 20,185.35 and 11,655.14

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Solution

The fourth proportional to 14,639.18, 20,185.35 and 11,655.14 is: 16,070.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.18 : 20,185.35 = 11,655.14 : x
  2. Step 2: Convert to fraction form
    14,639.18/20,185.35 = 11,655.14/x
  3. Step 3: Cross multiply
    14,639.18x = 20,185.35 × 11,655.14
  4. Step 4: Simplify right side
    14,639.18x = 235,263,080.20
  5. Step 5: Solve for x
    x = 235,263,080.20/14,639.18
  6. Step 6: Final answer
    x = 16,070.78

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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.