Home / 21,146.70-29,182.44-11,715.26

Finding the Fourth Proportional to 21,146.70, 29,182.44 and 11,715.26

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Solution

The fourth proportional to 21,146.70, 29,182.44 and 11,715.26 is: 16,167.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,146.70 : 29,182.44 = 11,715.26 : x
  2. Step 2: Convert to fraction form
    21,146.70/29,182.44 = 11,715.26/x
  3. Step 3: Cross multiply
    21,146.70x = 29,182.44 × 11,715.26
  4. Step 4: Simplify right side
    21,146.70x = 341,879,802.71
  5. Step 5: Solve for x
    x = 341,879,802.71/21,146.70
  6. Step 6: Final answer
    x = 16,167.06

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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.