Home / 21,366.56-29,486.76-12,416.06

Finding the Fourth Proportional to 21,366.56, 29,486.76 and 12,416.06

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Solution

The fourth proportional to 21,366.56, 29,486.76 and 12,416.06 is: 17,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.56 : 29,486.76 = 12,416.06 : x
  2. Step 2: Convert to fraction form
    21,366.56/29,486.76 = 12,416.06/x
  3. Step 3: Cross multiply
    21,366.56x = 29,486.76 × 12,416.06
  4. Step 4: Simplify right side
    21,366.56x = 366,109,381.37
  5. Step 5: Solve for x
    x = 366,109,381.37/21,366.56
  6. Step 6: Final answer
    x = 17,134.69

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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.