Home / 13,424.37-18,525.65-7,456.05

Finding the Fourth Proportional to 13,424.37, 18,525.65 and 7,456.05

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Solution

The fourth proportional to 13,424.37, 18,525.65 and 7,456.05 is: 10,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.37 : 18,525.65 = 7,456.05 : x
  2. Step 2: Convert to fraction form
    13,424.37/18,525.65 = 7,456.05/x
  3. Step 3: Cross multiply
    13,424.37x = 18,525.65 × 7,456.05
  4. Step 4: Simplify right side
    13,424.37x = 138,128,135.40
  5. Step 5: Solve for x
    x = 138,128,135.40/13,424.37
  6. Step 6: Final answer
    x = 10,289.36

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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.