Home / 10,967.12-15,153.48-8,627.60

Finding the Fourth Proportional to 10,967.12, 15,153.48 and 8,627.60

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Solution

The fourth proportional to 10,967.12, 15,153.48 and 8,627.60 is: 11,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,967.12 : 15,153.48 = 8,627.60 : x
  2. Step 2: Convert to fraction form
    10,967.12/15,153.48 = 8,627.60/x
  3. Step 3: Cross multiply
    10,967.12x = 15,153.48 × 8,627.60
  4. Step 4: Simplify right side
    10,967.12x = 130,738,164.05
  5. Step 5: Solve for x
    x = 130,738,164.05/10,967.12
  6. Step 6: Final answer
    x = 11,920.92

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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.