Home / 10,012.12-13,816.98-5,535.92

Finding the Fourth Proportional to 10,012.12, 13,816.98 and 5,535.92

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Solution

The fourth proportional to 10,012.12, 13,816.98 and 5,535.92 is: 7,639.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.12 : 13,816.98 = 5,535.92 : x
  2. Step 2: Convert to fraction form
    10,012.12/13,816.98 = 5,535.92/x
  3. Step 3: Cross multiply
    10,012.12x = 13,816.98 × 5,535.92
  4. Step 4: Simplify right side
    10,012.12x = 76,489,730.46
  5. Step 5: Solve for x
    x = 76,489,730.46/10,012.12
  6. Step 6: Final answer
    x = 7,639.72

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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.