Home / 12,436.10-17,161.32-7,127.24

Finding the Fourth Proportional to 12,436.10, 17,161.32 and 7,127.24

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Solution

The fourth proportional to 12,436.10, 17,161.32 and 7,127.24 is: 9,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.10 : 17,161.32 = 7,127.24 : x
  2. Step 2: Convert to fraction form
    12,436.10/17,161.32 = 7,127.24/x
  3. Step 3: Cross multiply
    12,436.10x = 17,161.32 × 7,127.24
  4. Step 4: Simplify right side
    12,436.10x = 122,312,846.36
  5. Step 5: Solve for x
    x = 122,312,846.36/12,436.10
  6. Step 6: Final answer
    x = 9,835.31

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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.