Home / 13,542.96-18,687.78-7,574.51

Finding the Fourth Proportional to 13,542.96, 18,687.78 and 7,574.51

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Solution

The fourth proportional to 13,542.96, 18,687.78 and 7,574.51 is: 10,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,542.96 : 18,687.78 = 7,574.51 : x
  2. Step 2: Convert to fraction form
    13,542.96/18,687.78 = 7,574.51/x
  3. Step 3: Cross multiply
    13,542.96x = 18,687.78 × 7,574.51
  4. Step 4: Simplify right side
    13,542.96x = 141,550,823.21
  5. Step 5: Solve for x
    x = 141,550,823.21/13,542.96
  6. Step 6: Final answer
    x = 10,451.98

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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.