Home / 15,150.63-20,909.49-8,868.27

Finding the Fourth Proportional to 15,150.63, 20,909.49 and 8,868.27

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Solution

The fourth proportional to 15,150.63, 20,909.49 and 8,868.27 is: 12,239.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.63 : 20,909.49 = 8,868.27 : x
  2. Step 2: Convert to fraction form
    15,150.63/20,909.49 = 8,868.27/x
  3. Step 3: Cross multiply
    15,150.63x = 20,909.49 × 8,868.27
  4. Step 4: Simplify right side
    15,150.63x = 185,430,853.99
  5. Step 5: Solve for x
    x = 185,430,853.99/15,150.63
  6. Step 6: Final answer
    x = 12,239.16

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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.