Home / 15,185.28-20,950.08-8,895.36

Finding the Fourth Proportional to 15,185.28, 20,950.08 and 8,895.36

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Solution

The fourth proportional to 15,185.28, 20,950.08 and 8,895.36 is: 12,272.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185.28 : 20,950.08 = 8,895.36 : x
  2. Step 2: Convert to fraction form
    15,185.28/20,950.08 = 8,895.36/x
  3. Step 3: Cross multiply
    15,185.28x = 20,950.08 × 8,895.36
  4. Step 4: Simplify right side
    15,185.28x = 186,358,503.63
  5. Step 5: Solve for x
    x = 186,358,503.63/15,185.28
  6. Step 6: Final answer
    x = 12,272.31

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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.