Home / 17,868.58-26,782.81-8,385.53

Finding the Fourth Proportional to 17,868.58, 26,782.81 and 8,385.53

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Solution

The fourth proportional to 17,868.58, 26,782.81 and 8,385.53 is: 12,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,868.58 : 26,782.81 = 8,385.53 : x
  2. Step 2: Convert to fraction form
    17,868.58/26,782.81 = 8,385.53/x
  3. Step 3: Cross multiply
    17,868.58x = 26,782.81 × 8,385.53
  4. Step 4: Simplify right side
    17,868.58x = 224,588,056.74
  5. Step 5: Solve for x
    x = 224,588,056.74/17,868.58
  6. Step 6: Final answer
    x = 12,568.88

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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.