Home / 11,221.65-16,830.45-7,054.20

Finding the Fourth Proportional to 11,221.65, 16,830.45 and 7,054.20

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Solution

The fourth proportional to 11,221.65, 16,830.45 and 7,054.20 is: 10,580.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.65 : 16,830.45 = 7,054.20 : x
  2. Step 2: Convert to fraction form
    11,221.65/16,830.45 = 7,054.20/x
  3. Step 3: Cross multiply
    11,221.65x = 16,830.45 × 7,054.20
  4. Step 4: Simplify right side
    11,221.65x = 118,725,360.39
  5. Step 5: Solve for x
    x = 118,725,360.39/11,221.65
  6. Step 6: Final answer
    x = 10,580.03

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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.