Home / 13,631.36-20,427.86-10,845.63

Finding the Fourth Proportional to 13,631.36, 20,427.86 and 10,845.63

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Solution

The fourth proportional to 13,631.36, 20,427.86 and 10,845.63 is: 16,253.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.36 : 20,427.86 = 10,845.63 : x
  2. Step 2: Convert to fraction form
    13,631.36/20,427.86 = 10,845.63/x
  3. Step 3: Cross multiply
    13,631.36x = 20,427.86 × 10,845.63
  4. Step 4: Simplify right side
    13,631.36x = 221,553,038.37
  5. Step 5: Solve for x
    x = 221,553,038.37/13,631.36
  6. Step 6: Final answer
    x = 16,253.19

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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.