Home / 13,572.86-20,356.07-7,652.36

Finding the Fourth Proportional to 13,572.86, 20,356.07 and 7,652.36

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Solution

The fourth proportional to 13,572.86, 20,356.07 and 7,652.36 is: 11,476.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.86 : 20,356.07 = 7,652.36 : x
  2. Step 2: Convert to fraction form
    13,572.86/20,356.07 = 7,652.36/x
  3. Step 3: Cross multiply
    13,572.86x = 20,356.07 × 7,652.36
  4. Step 4: Simplify right side
    13,572.86x = 155,771,988.45
  5. Step 5: Solve for x
    x = 155,771,988.45/13,572.86
  6. Step 6: Final answer
    x = 11,476.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.