Home / 14,505.18-20,017.16-8,217.55

Finding the Fourth Proportional to 14,505.18, 20,017.16 and 8,217.55

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Solution

The fourth proportional to 14,505.18, 20,017.16 and 8,217.55 is: 11,340.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,505.18 : 20,017.16 = 8,217.55 : x
  2. Step 2: Convert to fraction form
    14,505.18/20,017.16 = 8,217.55/x
  3. Step 3: Cross multiply
    14,505.18x = 20,017.16 × 8,217.55
  4. Step 4: Simplify right side
    14,505.18x = 164,492,013.16
  5. Step 5: Solve for x
    x = 164,492,013.16/14,505.18
  6. Step 6: Final answer
    x = 11,340.23

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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.