Home / 14,836.95-20,475.47-8,122.86

Finding the Fourth Proportional to 14,836.95, 20,475.47 and 8,122.86

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Solution

The fourth proportional to 14,836.95, 20,475.47 and 8,122.86 is: 11,209.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,836.95 : 20,475.47 = 8,122.86 : x
  2. Step 2: Convert to fraction form
    14,836.95/20,475.47 = 8,122.86/x
  3. Step 3: Cross multiply
    14,836.95x = 20,475.47 × 8,122.86
  4. Step 4: Simplify right side
    14,836.95x = 166,319,396.55
  5. Step 5: Solve for x
    x = 166,319,396.55/14,836.95
  6. Step 6: Final answer
    x = 11,209.81

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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.