Home / 13,424.03-18,524.65-7,455.80

Finding the Fourth Proportional to 13,424.03, 18,524.65 and 7,455.80

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Solution

The fourth proportional to 13,424.03, 18,524.65 and 7,455.80 is: 10,288.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.03 : 18,524.65 = 7,455.80 : x
  2. Step 2: Convert to fraction form
    13,424.03/18,524.65 = 7,455.80/x
  3. Step 3: Cross multiply
    13,424.03x = 18,524.65 × 7,455.80
  4. Step 4: Simplify right side
    13,424.03x = 138,116,022.92
  5. Step 5: Solve for x
    x = 138,116,022.92/13,424.03
  6. Step 6: Final answer
    x = 10,288.72

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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.