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Finding the Fourth Proportional to 9,453, 13,045.20 and 5,261.28

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Solution

The fourth proportional to 9,453, 13,045.20 and 5,261.28 is: 7,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,453 : 13,045.20 = 5,261.28 : x
  2. Step 2: Convert to fraction form
    9,453/13,045.20 = 5,261.28/x
  3. Step 3: Cross multiply
    9,453x = 13,045.20 × 5,261.28
  4. Step 4: Simplify right side
    9,453x = 68,634,449.86
  5. Step 5: Solve for x
    x = 68,634,449.86/9,453
  6. Step 6: Final answer
    x = 7,260.60

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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.