Home / 15,594.12-21,519.24-8,520.80

Finding the Fourth Proportional to 15,594.12, 21,519.24 and 8,520.80

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Solution

The fourth proportional to 15,594.12, 21,519.24 and 8,520.80 is: 11,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,594.12 : 21,519.24 = 8,520.80 : x
  2. Step 2: Convert to fraction form
    15,594.12/21,519.24 = 8,520.80/x
  3. Step 3: Cross multiply
    15,594.12x = 21,519.24 × 8,520.80
  4. Step 4: Simplify right side
    15,594.12x = 183,361,140.19
  5. Step 5: Solve for x
    x = 183,361,140.19/15,594.12
  6. Step 6: Final answer
    x = 11,758.35

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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.