Home / 14,866.26-20,515.08-8,405.34

Finding the Fourth Proportional to 14,866.26, 20,515.08 and 8,405.34

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Solution

The fourth proportional to 14,866.26, 20,515.08 and 8,405.34 is: 11,599.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,866.26 : 20,515.08 = 8,405.34 : x
  2. Step 2: Convert to fraction form
    14,866.26/20,515.08 = 8,405.34/x
  3. Step 3: Cross multiply
    14,866.26x = 20,515.08 × 8,405.34
  4. Step 4: Simplify right side
    14,866.26x = 172,436,222.53
  5. Step 5: Solve for x
    x = 172,436,222.53/14,866.26
  6. Step 6: Final answer
    x = 11,599.17

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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.