Home / 19,659.12-27,125.46-12,491.16

Finding the Fourth Proportional to 19,659.12, 27,125.46 and 12,491.16

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Solution

The fourth proportional to 19,659.12, 27,125.46 and 12,491.16 is: 17,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.12 : 27,125.46 = 12,491.16 : x
  2. Step 2: Convert to fraction form
    19,659.12/27,125.46 = 12,491.16/x
  3. Step 3: Cross multiply
    19,659.12x = 27,125.46 × 12,491.16
  4. Step 4: Simplify right side
    19,659.12x = 338,828,460.93
  5. Step 5: Solve for x
    x = 338,828,460.93/19,659.12
  6. Step 6: Final answer
    x = 17,235.18

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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.