Home / 9,157.23-12,637.43-5,380.60

Finding the Fourth Proportional to 9,157.23, 12,637.43 and 5,380.60

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Solution

The fourth proportional to 9,157.23, 12,637.43 and 5,380.60 is: 7,425.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.23 : 12,637.43 = 5,380.60 : x
  2. Step 2: Convert to fraction form
    9,157.23/12,637.43 = 5,380.60/x
  3. Step 3: Cross multiply
    9,157.23x = 12,637.43 × 5,380.60
  4. Step 4: Simplify right side
    9,157.23x = 67,996,955.86
  5. Step 5: Solve for x
    x = 67,996,955.86/9,157.23
  6. Step 6: Final answer
    x = 7,425.49

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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.