Home / 13,424.68-18,525.55-7,456.74

Finding the Fourth Proportional to 13,424.68, 18,525.55 and 7,456.74

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Solution

The fourth proportional to 13,424.68, 18,525.55 and 7,456.74 is: 10,290.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.68 : 18,525.55 = 7,456.74 : x
  2. Step 2: Convert to fraction form
    13,424.68/18,525.55 = 7,456.74/x
  3. Step 3: Cross multiply
    13,424.68x = 18,525.55 × 7,456.74
  4. Step 4: Simplify right side
    13,424.68x = 138,140,098.44
  5. Step 5: Solve for x
    x = 138,140,098.44/13,424.68
  6. Step 6: Final answer
    x = 10,290.01

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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.