Home / 13,617.16-18,790.72-12,501.79

Finding the Fourth Proportional to 13,617.16, 18,790.72 and 12,501.79

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Solution

The fourth proportional to 13,617.16, 18,790.72 and 12,501.79 is: 17,251.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.16 : 18,790.72 = 12,501.79 : x
  2. Step 2: Convert to fraction form
    13,617.16/18,790.72 = 12,501.79/x
  3. Step 3: Cross multiply
    13,617.16x = 18,790.72 × 12,501.79
  4. Step 4: Simplify right side
    13,617.16x = 234,917,557.16
  5. Step 5: Solve for x
    x = 234,917,557.16/13,617.16
  6. Step 6: Final answer
    x = 17,251.59

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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.