Home / 15,374.64-21,202.90-10,072.38

Finding the Fourth Proportional to 15,374.64, 21,202.90 and 10,072.38

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Solution

The fourth proportional to 15,374.64, 21,202.90 and 10,072.38 is: 13,890.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.64 : 21,202.90 = 10,072.38 : x
  2. Step 2: Convert to fraction form
    15,374.64/21,202.90 = 10,072.38/x
  3. Step 3: Cross multiply
    15,374.64x = 21,202.90 × 10,072.38
  4. Step 4: Simplify right side
    15,374.64x = 213,563,720.23
  5. Step 5: Solve for x
    x = 213,563,720.23/15,374.64
  6. Step 6: Final answer
    x = 13,890.65

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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.