Home / 15,209.44-20,988.98-8,495.07

Finding the Fourth Proportional to 15,209.44, 20,988.98 and 8,495.07

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Solution

The fourth proportional to 15,209.44, 20,988.98 and 8,495.07 is: 11,723.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,209.44 : 20,988.98 = 8,495.07 : x
  2. Step 2: Convert to fraction form
    15,209.44/20,988.98 = 8,495.07/x
  3. Step 3: Cross multiply
    15,209.44x = 20,988.98 × 8,495.07
  4. Step 4: Simplify right side
    15,209.44x = 178,302,811.85
  5. Step 5: Solve for x
    x = 178,302,811.85/15,209.44
  6. Step 6: Final answer
    x = 11,723.17

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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.