Home / 13,829.60-19,084.80-7,541.92

Finding the Fourth Proportional to 13,829.60, 19,084.80 and 7,541.92

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Solution

The fourth proportional to 13,829.60, 19,084.80 and 7,541.92 is: 10,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.60 : 19,084.80 = 7,541.92 : x
  2. Step 2: Convert to fraction form
    13,829.60/19,084.80 = 7,541.92/x
  3. Step 3: Cross multiply
    13,829.60x = 19,084.80 × 7,541.92
  4. Step 4: Simplify right side
    13,829.60x = 143,936,034.82
  5. Step 5: Solve for x
    x = 143,936,034.82/13,829.60
  6. Step 6: Final answer
    x = 10,407.82

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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.