Home / 12,173.93-16,803.62-7,139.24

Finding the Fourth Proportional to 12,173.93, 16,803.62 and 7,139.24

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Solution

The fourth proportional to 12,173.93, 16,803.62 and 7,139.24 is: 9,854.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.93 : 16,803.62 = 7,139.24 : x
  2. Step 2: Convert to fraction form
    12,173.93/16,803.62 = 7,139.24/x
  3. Step 3: Cross multiply
    12,173.93x = 16,803.62 × 7,139.24
  4. Step 4: Simplify right side
    12,173.93x = 119,964,956.33
  5. Step 5: Solve for x
    x = 119,964,956.33/12,173.93
  6. Step 6: Final answer
    x = 9,854.25

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Double scale
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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.