Home / 11,189.40-15,457.50-11,074.20

Finding the Fourth Proportional to 11,189.40, 15,457.50 and 11,074.20

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Solution

The fourth proportional to 11,189.40, 15,457.50 and 11,074.20 is: 15,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.40 : 15,457.50 = 11,074.20 : x
  2. Step 2: Convert to fraction form
    11,189.40/15,457.50 = 11,074.20/x
  3. Step 3: Cross multiply
    11,189.40x = 15,457.50 × 11,074.20
  4. Step 4: Simplify right side
    11,189.40x = 171,179,446.50
  5. Step 5: Solve for x
    x = 171,179,446.50/11,189.40
  6. Step 6: Final answer
    x = 15,298.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.