Home / 15,444.42-21,311.60-8,730.05

Finding the Fourth Proportional to 15,444.42, 21,311.60 and 8,730.05

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Solution

The fourth proportional to 15,444.42, 21,311.60 and 8,730.05 is: 12,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.42 : 21,311.60 = 8,730.05 : x
  2. Step 2: Convert to fraction form
    15,444.42/21,311.60 = 8,730.05/x
  3. Step 3: Cross multiply
    15,444.42x = 21,311.60 × 8,730.05
  4. Step 4: Simplify right side
    15,444.42x = 186,051,183.37
  5. Step 5: Solve for x
    x = 186,051,183.37/15,444.42
  6. Step 6: Final answer
    x = 12,046.50

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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.