Home / 14,239.10-21,358.99-4,378.47

Finding the Fourth Proportional to 14,239.10, 21,358.99 and 4,378.47

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Solution

The fourth proportional to 14,239.10, 21,358.99 and 4,378.47 is: 6,567.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.10 : 21,358.99 = 4,378.47 : x
  2. Step 2: Convert to fraction form
    14,239.10/21,358.99 = 4,378.47/x
  3. Step 3: Cross multiply
    14,239.10x = 21,358.99 × 4,378.47
  4. Step 4: Simplify right side
    14,239.10x = 93,519,696.95
  5. Step 5: Solve for x
    x = 93,519,696.95/14,239.10
  6. Step 6: Final answer
    x = 6,567.81

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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.