Home / 13,700.92-20,511.06-10,427.32

Finding the Fourth Proportional to 13,700.92, 20,511.06 and 10,427.32

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Solution

The fourth proportional to 13,700.92, 20,511.06 and 10,427.32 is: 15,610.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.92 : 20,511.06 = 10,427.32 : x
  2. Step 2: Convert to fraction form
    13,700.92/20,511.06 = 10,427.32/x
  3. Step 3: Cross multiply
    13,700.92x = 20,511.06 × 10,427.32
  4. Step 4: Simplify right side
    13,700.92x = 213,875,386.16
  5. Step 5: Solve for x
    x = 213,875,386.16/13,700.92
  6. Step 6: Final answer
    x = 15,610.29

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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.