Home / 9,140.94-12,613.80-5,162.46

Finding the Fourth Proportional to 9,140.94, 12,613.80 and 5,162.46

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Solution

The fourth proportional to 9,140.94, 12,613.80 and 5,162.46 is: 7,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.94 : 12,613.80 = 5,162.46 : x
  2. Step 2: Convert to fraction form
    9,140.94/12,613.80 = 5,162.46/x
  3. Step 3: Cross multiply
    9,140.94x = 12,613.80 × 5,162.46
  4. Step 4: Simplify right side
    9,140.94x = 65,118,237.95
  5. Step 5: Solve for x
    x = 65,118,237.95/9,140.94
  6. Step 6: Final answer
    x = 7,123.80

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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.