Home / 19,485.96-26,893.08-12,777.18

Finding the Fourth Proportional to 19,485.96, 26,893.08 and 12,777.18

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Solution

The fourth proportional to 19,485.96, 26,893.08 and 12,777.18 is: 17,634.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.96 : 26,893.08 = 12,777.18 : x
  2. Step 2: Convert to fraction form
    19,485.96/26,893.08 = 12,777.18/x
  3. Step 3: Cross multiply
    19,485.96x = 26,893.08 × 12,777.18
  4. Step 4: Simplify right side
    19,485.96x = 343,617,723.91
  5. Step 5: Solve for x
    x = 343,617,723.91/19,485.96
  6. Step 6: Final answer
    x = 17,634.12

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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.