Home / 10,815.12-14,924.88-5,847.12

Finding the Fourth Proportional to 10,815.12, 14,924.88 and 5,847.12

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Solution

The fourth proportional to 10,815.12, 14,924.88 and 5,847.12 is: 8,069.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,815.12 : 14,924.88 = 5,847.12 : x
  2. Step 2: Convert to fraction form
    10,815.12/14,924.88 = 5,847.12/x
  3. Step 3: Cross multiply
    10,815.12x = 14,924.88 × 5,847.12
  4. Step 4: Simplify right side
    10,815.12x = 87,267,564.35
  5. Step 5: Solve for x
    x = 87,267,564.35/10,815.12
  6. Step 6: Final answer
    x = 8,069.03

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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.