Home / 11,587.70-17,381.55-4,192.40

Finding the Fourth Proportional to 11,587.70, 17,381.55 and 4,192.40

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Solution

The fourth proportional to 11,587.70, 17,381.55 and 4,192.40 is: 6,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,587.70 : 17,381.55 = 4,192.40 : x
  2. Step 2: Convert to fraction form
    11,587.70/17,381.55 = 4,192.40/x
  3. Step 3: Cross multiply
    11,587.70x = 17,381.55 × 4,192.40
  4. Step 4: Simplify right side
    11,587.70x = 72,870,410.22
  5. Step 5: Solve for x
    x = 72,870,410.22/11,587.70
  6. Step 6: Final answer
    x = 6,288.60

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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.