Home / 18,535.40-27,814.51-7,288.76

Finding the Fourth Proportional to 18,535.40, 27,814.51 and 7,288.76

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Solution

The fourth proportional to 18,535.40, 27,814.51 and 7,288.76 is: 10,937.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.40 : 27,814.51 = 7,288.76 : x
  2. Step 2: Convert to fraction form
    18,535.40/27,814.51 = 7,288.76/x
  3. Step 3: Cross multiply
    18,535.40x = 27,814.51 × 7,288.76
  4. Step 4: Simplify right side
    18,535.40x = 202,733,287.91
  5. Step 5: Solve for x
    x = 202,733,287.91/18,535.40
  6. Step 6: Final answer
    x = 10,937.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.