Home / 13,523.04-18,650.16-8,805.60

Finding the Fourth Proportional to 13,523.04, 18,650.16 and 8,805.60

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Solution

The fourth proportional to 13,523.04, 18,650.16 and 8,805.60 is: 12,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,523.04 : 18,650.16 = 8,805.60 : x
  2. Step 2: Convert to fraction form
    13,523.04/18,650.16 = 8,805.60/x
  3. Step 3: Cross multiply
    13,523.04x = 18,650.16 × 8,805.60
  4. Step 4: Simplify right side
    13,523.04x = 164,225,848.90
  5. Step 5: Solve for x
    x = 164,225,848.90/13,523.04
  6. Step 6: Final answer
    x = 12,144.15

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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.