Home / 11,114.40-16,639.20-9,818.40

Finding the Fourth Proportional to 11,114.40, 16,639.20 and 9,818.40

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Solution

The fourth proportional to 11,114.40, 16,639.20 and 9,818.40 is: 14,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.40 : 16,639.20 = 9,818.40 : x
  2. Step 2: Convert to fraction form
    11,114.40/16,639.20 = 9,818.40/x
  3. Step 3: Cross multiply
    11,114.40x = 16,639.20 × 9,818.40
  4. Step 4: Simplify right side
    11,114.40x = 163,370,321.28
  5. Step 5: Solve for x
    x = 163,370,321.28/11,114.40
  6. Step 6: Final answer
    x = 14,698.98

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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.