Home / 11,425.40-17,138.10-9,582.20

Finding the Fourth Proportional to 11,425.40, 17,138.10 and 9,582.20

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Solution

The fourth proportional to 11,425.40, 17,138.10 and 9,582.20 is: 14,373.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.40 : 17,138.10 = 9,582.20 : x
  2. Step 2: Convert to fraction form
    11,425.40/17,138.10 = 9,582.20/x
  3. Step 3: Cross multiply
    11,425.40x = 17,138.10 × 9,582.20
  4. Step 4: Simplify right side
    11,425.40x = 164,220,701.82
  5. Step 5: Solve for x
    x = 164,220,701.82/11,425.40
  6. Step 6: Final answer
    x = 14,373.30

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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.