Home / 21,345.83-29,459.00-11,786.66

Finding the Fourth Proportional to 21,345.83, 29,459.00 and 11,786.66

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Solution

The fourth proportional to 21,345.83, 29,459.00 and 11,786.66 is: 16,266.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,345.83 : 29,459.00 = 11,786.66 : x
  2. Step 2: Convert to fraction form
    21,345.83/29,459.00 = 11,786.66/x
  3. Step 3: Cross multiply
    21,345.83x = 29,459.00 × 11,786.66
  4. Step 4: Simplify right side
    21,345.83x = 347,223,305.32
  5. Step 5: Solve for x
    x = 347,223,305.32/21,345.83
  6. Step 6: Final answer
    x = 16,266.57

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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.