Home / 12,457.06-18,686.96-6,218.64

Finding the Fourth Proportional to 12,457.06, 18,686.96 and 6,218.64

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Solution

The fourth proportional to 12,457.06, 18,686.96 and 6,218.64 is: 9,328.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457.06 : 18,686.96 = 6,218.64 : x
  2. Step 2: Convert to fraction form
    12,457.06/18,686.96 = 6,218.64/x
  3. Step 3: Cross multiply
    12,457.06x = 18,686.96 × 6,218.64
  4. Step 4: Simplify right side
    12,457.06x = 116,207,476.93
  5. Step 5: Solve for x
    x = 116,207,476.93/12,457.06
  6. Step 6: Final answer
    x = 9,328.64

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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.