Home / 11,434.20-17,117.70-8,525.40

Finding the Fourth Proportional to 11,434.20, 17,117.70 and 8,525.40

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Solution

The fourth proportional to 11,434.20, 17,117.70 and 8,525.40 is: 12,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,434.20 : 17,117.70 = 8,525.40 : x
  2. Step 2: Convert to fraction form
    11,434.20/17,117.70 = 8,525.40/x
  3. Step 3: Cross multiply
    11,434.20x = 17,117.70 × 8,525.40
  4. Step 4: Simplify right side
    11,434.20x = 145,935,239.58
  5. Step 5: Solve for x
    x = 145,935,239.58/11,434.20
  6. Step 6: Final answer
    x = 12,763.05

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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.