Home / 15,336.04-21,162.57-8,620.60

Finding the Fourth Proportional to 15,336.04, 21,162.57 and 8,620.60

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Solution

The fourth proportional to 15,336.04, 21,162.57 and 8,620.60 is: 11,895.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336.04 : 21,162.57 = 8,620.60 : x
  2. Step 2: Convert to fraction form
    15,336.04/21,162.57 = 8,620.60/x
  3. Step 3: Cross multiply
    15,336.04x = 21,162.57 × 8,620.60
  4. Step 4: Simplify right side
    15,336.04x = 182,434,050.94
  5. Step 5: Solve for x
    x = 182,434,050.94/15,336.04
  6. Step 6: Final answer
    x = 11,895.77

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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.