Home / 10,535.22-15,802.82-3,139.49

Finding the Fourth Proportional to 10,535.22, 15,802.82 and 3,139.49

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Solution

The fourth proportional to 10,535.22, 15,802.82 and 3,139.49 is: 4,709.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.22 : 15,802.82 = 3,139.49 : x
  2. Step 2: Convert to fraction form
    10,535.22/15,802.82 = 3,139.49/x
  3. Step 3: Cross multiply
    10,535.22x = 15,802.82 × 3,139.49
  4. Step 4: Simplify right side
    10,535.22x = 49,612,830.94
  5. Step 5: Solve for x
    x = 49,612,830.94/10,535.22
  6. Step 6: Final answer
    x = 4,709.24

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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.