Home / 13,208.72-19,774.67-10,278.14

Finding the Fourth Proportional to 13,208.72, 19,774.67 and 10,278.14

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Solution

The fourth proportional to 13,208.72, 19,774.67 and 10,278.14 is: 15,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.72 : 19,774.67 = 10,278.14 : x
  2. Step 2: Convert to fraction form
    13,208.72/19,774.67 = 10,278.14/x
  3. Step 3: Cross multiply
    13,208.72x = 19,774.67 × 10,278.14
  4. Step 4: Simplify right side
    13,208.72x = 203,246,676.45
  5. Step 5: Solve for x
    x = 203,246,676.45/13,208.72
  6. Step 6: Final answer
    x = 15,387.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.