Home / 15,219.50-21,004.90-8,506.52

Finding the Fourth Proportional to 15,219.50, 21,004.90 and 8,506.52

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Solution

The fourth proportional to 15,219.50, 21,004.90 and 8,506.52 is: 11,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,219.50 : 21,004.90 = 8,506.52 : x
  2. Step 2: Convert to fraction form
    15,219.50/21,004.90 = 8,506.52/x
  3. Step 3: Cross multiply
    15,219.50x = 21,004.90 × 8,506.52
  4. Step 4: Simplify right side
    15,219.50x = 178,678,672.58
  5. Step 5: Solve for x
    x = 178,678,672.58/15,219.50
  6. Step 6: Final answer
    x = 11,740.11

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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.