Home / 14,986.48-20,681.34-8,272.11

Finding the Fourth Proportional to 14,986.48, 20,681.34 and 8,272.11

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Solution

The fourth proportional to 14,986.48, 20,681.34 and 8,272.11 is: 11,415.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.48 : 20,681.34 = 8,272.11 : x
  2. Step 2: Convert to fraction form
    14,986.48/20,681.34 = 8,272.11/x
  3. Step 3: Cross multiply
    14,986.48x = 20,681.34 × 8,272.11
  4. Step 4: Simplify right side
    14,986.48x = 171,078,210.85
  5. Step 5: Solve for x
    x = 171,078,210.85/14,986.48
  6. Step 6: Final answer
    x = 11,415.51

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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.