Home / 11,223.13-15,484.12-6,972.67

Finding the Fourth Proportional to 11,223.13, 15,484.12 and 6,972.67

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Solution

The fourth proportional to 11,223.13, 15,484.12 and 6,972.67 is: 9,619.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,223.13 : 15,484.12 = 6,972.67 : x
  2. Step 2: Convert to fraction form
    11,223.13/15,484.12 = 6,972.67/x
  3. Step 3: Cross multiply
    11,223.13x = 15,484.12 × 6,972.67
  4. Step 4: Simplify right side
    11,223.13x = 107,965,659.00
  5. Step 5: Solve for x
    x = 107,965,659.00/11,223.13
  6. Step 6: Final answer
    x = 9,619.92

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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.