Home / 12,742.97-17,581.66-7,703.53

Finding the Fourth Proportional to 12,742.97, 17,581.66 and 7,703.53

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Solution

The fourth proportional to 12,742.97, 17,581.66 and 7,703.53 is: 10,628.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,742.97 : 17,581.66 = 7,703.53 : x
  2. Step 2: Convert to fraction form
    12,742.97/17,581.66 = 7,703.53/x
  3. Step 3: Cross multiply
    12,742.97x = 17,581.66 × 7,703.53
  4. Step 4: Simplify right side
    12,742.97x = 135,440,831.50
  5. Step 5: Solve for x
    x = 135,440,831.50/12,742.97
  6. Step 6: Final answer
    x = 10,628.67

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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.