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Finding the Fourth Proportional to 14,007.36, 19,330.08 and 7,719.36

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Solution

The fourth proportional to 14,007.36, 19,330.08 and 7,719.36 is: 10,652.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.36 : 19,330.08 = 7,719.36 : x
  2. Step 2: Convert to fraction form
    14,007.36/19,330.08 = 7,719.36/x
  3. Step 3: Cross multiply
    14,007.36x = 19,330.08 × 7,719.36
  4. Step 4: Simplify right side
    14,007.36x = 149,215,846.35
  5. Step 5: Solve for x
    x = 149,215,846.35/14,007.36
  6. Step 6: Final answer
    x = 10,652.67

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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.