Home / 13,122.11-19,682.56-4,237.85

Finding the Fourth Proportional to 13,122.11, 19,682.56 and 4,237.85

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Solution

The fourth proportional to 13,122.11, 19,682.56 and 4,237.85 is: 6,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.11 : 19,682.56 = 4,237.85 : x
  2. Step 2: Convert to fraction form
    13,122.11/19,682.56 = 4,237.85/x
  3. Step 3: Cross multiply
    13,122.11x = 19,682.56 × 4,237.85
  4. Step 4: Simplify right side
    13,122.11x = 83,411,715.71
  5. Step 5: Solve for x
    x = 83,411,715.71/13,122.11
  6. Step 6: Final answer
    x = 6,356.58

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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.