Home / 10,284.13-14,178.36-7,721.03

Finding the Fourth Proportional to 10,284.13, 14,178.36 and 7,721.03

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Solution

The fourth proportional to 10,284.13, 14,178.36 and 7,721.03 is: 10,644.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,284.13 : 14,178.36 = 7,721.03 : x
  2. Step 2: Convert to fraction form
    10,284.13/14,178.36 = 7,721.03/x
  3. Step 3: Cross multiply
    10,284.13x = 14,178.36 × 7,721.03
  4. Step 4: Simplify right side
    10,284.13x = 109,471,542.91
  5. Step 5: Solve for x
    x = 109,471,542.91/10,284.13
  6. Step 6: Final answer
    x = 10,644.71

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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.