Home / 12,118.85-16,723.79-7,403.13

Finding the Fourth Proportional to 12,118.85, 16,723.79 and 7,403.13

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Solution

The fourth proportional to 12,118.85, 16,723.79 and 7,403.13 is: 10,216.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.85 : 16,723.79 = 7,403.13 : x
  2. Step 2: Convert to fraction form
    12,118.85/16,723.79 = 7,403.13/x
  3. Step 3: Cross multiply
    12,118.85x = 16,723.79 × 7,403.13
  4. Step 4: Simplify right side
    12,118.85x = 123,808,391.46
  5. Step 5: Solve for x
    x = 123,808,391.46/12,118.85
  6. Step 6: Final answer
    x = 10,216.18

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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.