Home / 9,154.98-12,633.45-5,175.87

Finding the Fourth Proportional to 9,154.98, 12,633.45 and 5,175.87

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Solution

The fourth proportional to 9,154.98, 12,633.45 and 5,175.87 is: 7,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.98 : 12,633.45 = 5,175.87 : x
  2. Step 2: Convert to fraction form
    9,154.98/12,633.45 = 5,175.87/x
  3. Step 3: Cross multiply
    9,154.98x = 12,633.45 × 5,175.87
  4. Step 4: Simplify right side
    9,154.98x = 65,389,094.85
  5. Step 5: Solve for x
    x = 65,389,094.85/9,154.98
  6. Step 6: Final answer
    x = 7,142.46

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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.