Home / 13,815.55-19,065.46-7,527.92

Finding the Fourth Proportional to 13,815.55, 19,065.46 and 7,527.92

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Solution

The fourth proportional to 13,815.55, 19,065.46 and 7,527.92 is: 10,388.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.55 : 19,065.46 = 7,527.92 : x
  2. Step 2: Convert to fraction form
    13,815.55/19,065.46 = 7,527.92/x
  3. Step 3: Cross multiply
    13,815.55x = 19,065.46 × 7,527.92
  4. Step 4: Simplify right side
    13,815.55x = 143,523,220.00
  5. Step 5: Solve for x
    x = 143,523,220.00/13,815.55
  6. Step 6: Final answer
    x = 10,388.53

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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.