Home / 9,150.45-12,627.75-5,376.47

Finding the Fourth Proportional to 9,150.45, 12,627.75 and 5,376.47

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Solution

The fourth proportional to 9,150.45, 12,627.75 and 5,376.47 is: 7,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,150.45 : 12,627.75 = 5,376.47 : x
  2. Step 2: Convert to fraction form
    9,150.45/12,627.75 = 5,376.47/x
  3. Step 3: Cross multiply
    9,150.45x = 12,627.75 × 5,376.47
  4. Step 4: Simplify right side
    9,150.45x = 67,892,655.90
  5. Step 5: Solve for x
    x = 67,892,655.90/9,150.45
  6. Step 6: Final answer
    x = 7,419.60

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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.