Home / 10,975.07-15,140.65-7,625.92

Finding the Fourth Proportional to 10,975.07, 15,140.65 and 7,625.92

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Solution

The fourth proportional to 10,975.07, 15,140.65 and 7,625.92 is: 10,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975.07 : 15,140.65 = 7,625.92 : x
  2. Step 2: Convert to fraction form
    10,975.07/15,140.65 = 7,625.92/x
  3. Step 3: Cross multiply
    10,975.07x = 15,140.65 × 7,625.92
  4. Step 4: Simplify right side
    10,975.07x = 115,461,385.65
  5. Step 5: Solve for x
    x = 115,461,385.65/10,975.07
  6. Step 6: Final answer
    x = 10,520.33

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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.