Home / 13,920.44-19,188.40-10,549.76

Finding the Fourth Proportional to 13,920.44, 19,188.40 and 10,549.76

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Solution

The fourth proportional to 13,920.44, 19,188.40 and 10,549.76 is: 14,542.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.44 : 19,188.40 = 10,549.76 : x
  2. Step 2: Convert to fraction form
    13,920.44/19,188.40 = 10,549.76/x
  3. Step 3: Cross multiply
    13,920.44x = 19,188.40 × 10,549.76
  4. Step 4: Simplify right side
    13,920.44x = 202,433,014.78
  5. Step 5: Solve for x
    x = 202,433,014.78/13,920.44
  6. Step 6: Final answer
    x = 14,542.14

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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.