Home / 12,247.16-18,381.40-6,992.69

Finding the Fourth Proportional to 12,247.16, 18,381.40 and 6,992.69

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Solution

The fourth proportional to 12,247.16, 18,381.40 and 6,992.69 is: 10,495.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,247.16 : 18,381.40 = 6,992.69 : x
  2. Step 2: Convert to fraction form
    12,247.16/18,381.40 = 6,992.69/x
  3. Step 3: Cross multiply
    12,247.16x = 18,381.40 × 6,992.69
  4. Step 4: Simplify right side
    12,247.16x = 128,535,322.58
  5. Step 5: Solve for x
    x = 128,535,322.58/12,247.16
  6. Step 6: Final answer
    x = 10,495.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.