Home / 11,434.46-15,782.61-6,721.88

Finding the Fourth Proportional to 11,434.46, 15,782.61 and 6,721.88

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Solution

The fourth proportional to 11,434.46, 15,782.61 and 6,721.88 is: 9,277.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.46 : 15,782.61 = 6,721.88 : x
  2. Step 2: Convert to fraction form
    11,434.46/15,782.61 = 6,721.88/x
  3. Step 3: Cross multiply
    11,434.46x = 15,782.61 × 6,721.88
  4. Step 4: Simplify right side
    11,434.46x = 106,088,810.51
  5. Step 5: Solve for x
    x = 106,088,810.51/11,434.46
  6. Step 6: Final answer
    x = 9,277.99

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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.