Home / 13,424.51-18,525.23-7,455.71

Finding the Fourth Proportional to 13,424.51, 18,525.23 and 7,455.71

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Solution

The fourth proportional to 13,424.51, 18,525.23 and 7,455.71 is: 10,288.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.51 : 18,525.23 = 7,455.71 : x
  2. Step 2: Convert to fraction form
    13,424.51/18,525.23 = 7,455.71/x
  3. Step 3: Cross multiply
    13,424.51x = 18,525.23 × 7,455.71
  4. Step 4: Simplify right side
    13,424.51x = 138,118,742.56
  5. Step 5: Solve for x
    x = 138,118,742.56/13,424.51
  6. Step 6: Final answer
    x = 10,288.55

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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.