Home / 19,873.14-27,420.21-11,916.02

Finding the Fourth Proportional to 19,873.14, 27,420.21 and 11,916.02

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Solution

The fourth proportional to 19,873.14, 27,420.21 and 11,916.02 is: 16,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.14 : 27,420.21 = 11,916.02 : x
  2. Step 2: Convert to fraction form
    19,873.14/27,420.21 = 11,916.02/x
  3. Step 3: Cross multiply
    19,873.14x = 27,420.21 × 11,916.02
  4. Step 4: Simplify right side
    19,873.14x = 326,739,770.76
  5. Step 5: Solve for x
    x = 326,739,770.76/19,873.14
  6. Step 6: Final answer
    x = 16,441.28

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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.