Home / 13,427.79-20,053.87-11,432.14

Finding the Fourth Proportional to 13,427.79, 20,053.87 and 11,432.14

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Solution

The fourth proportional to 13,427.79, 20,053.87 and 11,432.14 is: 17,073.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.79 : 20,053.87 = 11,432.14 : x
  2. Step 2: Convert to fraction form
    13,427.79/20,053.87 = 11,432.14/x
  3. Step 3: Cross multiply
    13,427.79x = 20,053.87 × 11,432.14
  4. Step 4: Simplify right side
    13,427.79x = 229,258,649.38
  5. Step 5: Solve for x
    x = 229,258,649.38/13,427.79
  6. Step 6: Final answer
    x = 17,073.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.