Home / 14,881.12-20,535.54-8,166.70

Finding the Fourth Proportional to 14,881.12, 20,535.54 and 8,166.70

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Solution

The fourth proportional to 14,881.12, 20,535.54 and 8,166.70 is: 11,269.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,881.12 : 20,535.54 = 8,166.70 : x
  2. Step 2: Convert to fraction form
    14,881.12/20,535.54 = 8,166.70/x
  3. Step 3: Cross multiply
    14,881.12x = 20,535.54 × 8,166.70
  4. Step 4: Simplify right side
    14,881.12x = 167,707,594.52
  5. Step 5: Solve for x
    x = 167,707,594.52/14,881.12
  6. Step 6: Final answer
    x = 11,269.82

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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.