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Finding the Fourth Proportional to 16,952.60, 25,421.70 and 8,190.20

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Solution

The fourth proportional to 16,952.60, 25,421.70 and 8,190.20 is: 12,281.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,952.60 : 25,421.70 = 8,190.20 : x
  2. Step 2: Convert to fraction form
    16,952.60/25,421.70 = 8,190.20/x
  3. Step 3: Cross multiply
    16,952.60x = 25,421.70 × 8,190.20
  4. Step 4: Simplify right side
    16,952.60x = 208,208,807.34
  5. Step 5: Solve for x
    x = 208,208,807.34/16,952.60
  6. Step 6: Final answer
    x = 12,281.82

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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.