Home / 12,659.16-18,874.75-11,605.31

Finding the Fourth Proportional to 12,659.16, 18,874.75 and 11,605.31

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Solution

The fourth proportional to 12,659.16, 18,874.75 and 11,605.31 is: 17,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.16 : 18,874.75 = 11,605.31 : x
  2. Step 2: Convert to fraction form
    12,659.16/18,874.75 = 11,605.31/x
  3. Step 3: Cross multiply
    12,659.16x = 18,874.75 × 11,605.31
  4. Step 4: Simplify right side
    12,659.16x = 219,047,324.92
  5. Step 5: Solve for x
    x = 219,047,324.92/12,659.16
  6. Step 6: Final answer
    x = 17,303.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.