Home / 13,851.62-19,115.34-7,564.16

Finding the Fourth Proportional to 13,851.62, 19,115.34 and 7,564.16

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Solution

The fourth proportional to 13,851.62, 19,115.34 and 7,564.16 is: 10,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.62 : 19,115.34 = 7,564.16 : x
  2. Step 2: Convert to fraction form
    13,851.62/19,115.34 = 7,564.16/x
  3. Step 3: Cross multiply
    13,851.62x = 19,115.34 × 7,564.16
  4. Step 4: Simplify right side
    13,851.62x = 144,591,490.21
  5. Step 5: Solve for x
    x = 144,591,490.21/13,851.62
  6. Step 6: Final answer
    x = 10,438.60

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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.