Home / 18,921.72-26,110.14-10,423.74

Finding the Fourth Proportional to 18,921.72, 26,110.14 and 10,423.74

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Solution

The fourth proportional to 18,921.72, 26,110.14 and 10,423.74 is: 14,383.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.72 : 26,110.14 = 10,423.74 : x
  2. Step 2: Convert to fraction form
    18,921.72/26,110.14 = 10,423.74/x
  3. Step 3: Cross multiply
    18,921.72x = 26,110.14 × 10,423.74
  4. Step 4: Simplify right side
    18,921.72x = 272,165,310.72
  5. Step 5: Solve for x
    x = 272,165,310.72/18,921.72
  6. Step 6: Final answer
    x = 14,383.75

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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.