Home / 13,345.90-18,418.66-11,463.68

Finding the Fourth Proportional to 13,345.90, 18,418.66 and 11,463.68

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Solution

The fourth proportional to 13,345.90, 18,418.66 and 11,463.68 is: 15,821.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.90 : 18,418.66 = 11,463.68 : x
  2. Step 2: Convert to fraction form
    13,345.90/18,418.66 = 11,463.68/x
  3. Step 3: Cross multiply
    13,345.90x = 18,418.66 × 11,463.68
  4. Step 4: Simplify right side
    13,345.90x = 211,145,641.66
  5. Step 5: Solve for x
    x = 211,145,641.66/13,345.90
  6. Step 6: Final answer
    x = 15,821.01

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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.