Home / 11,307.45-15,602.27-6,828.21

Finding the Fourth Proportional to 11,307.45, 15,602.27 and 6,828.21

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Solution

The fourth proportional to 11,307.45, 15,602.27 and 6,828.21 is: 9,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,307.45 : 15,602.27 = 6,828.21 : x
  2. Step 2: Convert to fraction form
    11,307.45/15,602.27 = 6,828.21/x
  3. Step 3: Cross multiply
    11,307.45x = 15,602.27 × 6,828.21
  4. Step 4: Simplify right side
    11,307.45x = 106,535,508.99
  5. Step 5: Solve for x
    x = 106,535,508.99/11,307.45
  6. Step 6: Final answer
    x = 9,421.71

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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.