Home / 15,381.34-23,056.89-5,518.78

Finding the Fourth Proportional to 15,381.34, 23,056.89 and 5,518.78

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Solution

The fourth proportional to 15,381.34, 23,056.89 and 5,518.78 is: 8,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,381.34 : 23,056.89 = 5,518.78 : x
  2. Step 2: Convert to fraction form
    15,381.34/23,056.89 = 5,518.78/x
  3. Step 3: Cross multiply
    15,381.34x = 23,056.89 × 5,518.78
  4. Step 4: Simplify right side
    15,381.34x = 127,245,903.39
  5. Step 5: Solve for x
    x = 127,245,903.39/15,381.34
  6. Step 6: Final answer
    x = 8,272.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.