Home / 15,837.64-21,830.82-12,475.13

Finding the Fourth Proportional to 15,837.64, 21,830.82 and 12,475.13

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Solution

The fourth proportional to 15,837.64, 21,830.82 and 12,475.13 is: 17,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.64 : 21,830.82 = 12,475.13 : x
  2. Step 2: Convert to fraction form
    15,837.64/21,830.82 = 12,475.13/x
  3. Step 3: Cross multiply
    15,837.64x = 21,830.82 × 12,475.13
  4. Step 4: Simplify right side
    15,837.64x = 272,342,161.57
  5. Step 5: Solve for x
    x = 272,342,161.57/15,837.64
  6. Step 6: Final answer
    x = 17,195.88

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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.