Home / 12,399.96-17,110.40-7,362.30

Finding the Fourth Proportional to 12,399.96, 17,110.40 and 7,362.30

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Solution

The fourth proportional to 12,399.96, 17,110.40 and 7,362.30 is: 10,159.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,399.96 : 17,110.40 = 7,362.30 : x
  2. Step 2: Convert to fraction form
    12,399.96/17,110.40 = 7,362.30/x
  3. Step 3: Cross multiply
    12,399.96x = 17,110.40 × 7,362.30
  4. Step 4: Simplify right side
    12,399.96x = 125,971,861.11
  5. Step 5: Solve for x
    x = 125,971,861.11/12,399.96
  6. Step 6: Final answer
    x = 10,159.05

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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.