Home / 18,085.42-27,124.48-12,588.76

Finding the Fourth Proportional to 18,085.42, 27,124.48 and 12,588.76

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Solution

The fourth proportional to 18,085.42, 27,124.48 and 12,588.76 is: 18,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,085.42 : 27,124.48 = 12,588.76 : x
  2. Step 2: Convert to fraction form
    18,085.42/27,124.48 = 12,588.76/x
  3. Step 3: Cross multiply
    18,085.42x = 27,124.48 × 12,588.76
  4. Step 4: Simplify right side
    18,085.42x = 341,463,568.84
  5. Step 5: Solve for x
    x = 341,463,568.84/18,085.42
  6. Step 6: Final answer
    x = 18,880.60

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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.