Home / 14,968.83-20,639.91-11,185.63

Finding the Fourth Proportional to 14,968.83, 20,639.91 and 11,185.63

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Solution

The fourth proportional to 14,968.83, 20,639.91 and 11,185.63 is: 15,423.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,968.83 : 20,639.91 = 11,185.63 : x
  2. Step 2: Convert to fraction form
    14,968.83/20,639.91 = 11,185.63/x
  3. Step 3: Cross multiply
    14,968.83x = 20,639.91 × 11,185.63
  4. Step 4: Simplify right side
    14,968.83x = 230,870,386.84
  5. Step 5: Solve for x
    x = 230,870,386.84/14,968.83
  6. Step 6: Final answer
    x = 15,423.41

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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.