Home / 9,142.30-12,617.63-5,261.63

Finding the Fourth Proportional to 9,142.30, 12,617.63 and 5,261.63

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Solution

The fourth proportional to 9,142.30, 12,617.63 and 5,261.63 is: 7,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,142.30 : 12,617.63 = 5,261.63 : x
  2. Step 2: Convert to fraction form
    9,142.30/12,617.63 = 5,261.63/x
  3. Step 3: Cross multiply
    9,142.30x = 12,617.63 × 5,261.63
  4. Step 4: Simplify right side
    9,142.30x = 66,389,211.14
  5. Step 5: Solve for x
    x = 66,389,211.14/9,142.30
  6. Step 6: Final answer
    x = 7,261.76

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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.