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Finding the Fourth Proportional to 16,908.40, 25,384.20 and 9,017.20

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Solution

The fourth proportional to 16,908.40, 25,384.20 and 9,017.20 is: 13,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,908.40 : 25,384.20 = 9,017.20 : x
  2. Step 2: Convert to fraction form
    16,908.40/25,384.20 = 9,017.20/x
  3. Step 3: Cross multiply
    16,908.40x = 25,384.20 × 9,017.20
  4. Step 4: Simplify right side
    16,908.40x = 228,894,408.24
  5. Step 5: Solve for x
    x = 228,894,408.24/16,908.40
  6. Step 6: Final answer
    x = 13,537.32

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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.