Home / 11,221.93-15,475.08-7,245.10

Finding the Fourth Proportional to 11,221.93, 15,475.08 and 7,245.10

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Solution

The fourth proportional to 11,221.93, 15,475.08 and 7,245.10 is: 9,991.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.93 : 15,475.08 = 7,245.10 : x
  2. Step 2: Convert to fraction form
    11,221.93/15,475.08 = 7,245.10/x
  3. Step 3: Cross multiply
    11,221.93x = 15,475.08 × 7,245.10
  4. Step 4: Simplify right side
    11,221.93x = 112,118,502.11
  5. Step 5: Solve for x
    x = 112,118,502.11/11,221.93
  6. Step 6: Final answer
    x = 9,991.02

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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.