Home / 15,502.20-21,355.06-11,240.73

Finding the Fourth Proportional to 15,502.20, 21,355.06 and 11,240.73

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Solution

The fourth proportional to 15,502.20, 21,355.06 and 11,240.73 is: 15,484.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502.20 : 21,355.06 = 11,240.73 : x
  2. Step 2: Convert to fraction form
    15,502.20/21,355.06 = 11,240.73/x
  3. Step 3: Cross multiply
    15,502.20x = 21,355.06 × 11,240.73
  4. Step 4: Simplify right side
    15,502.20x = 240,046,463.59
  5. Step 5: Solve for x
    x = 240,046,463.59/15,502.20
  6. Step 6: Final answer
    x = 15,484.67

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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.